PG.5C, SEC 1, composite poly 1 (15)
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Question 1 of 15
1. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
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Question 2 of 15
2. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
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Question 3 of 15
3. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
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Question 4 of 15
4. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 5 of 15
5. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 6 of 15
6. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
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-
Question 7 of 15
7. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 8 of 15
8. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 9 of 15
9. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 10 of 15
10. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 11 of 15
11. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
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-
Question 12 of 15
12. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 13 of 15
13. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 14 of 15
14. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-
-
Question 15 of 15
15. Question
Topic: Polygon Problems.
-
x = °
⌨️ Round your answer to 2 decimal places where needed.
CorrectIncorrectHint
💡 Polygons meeting at a point: use the fact that angles around a point in a circle add up to 360°.
Identify each regular polygon in the diagram and count its number of sides.
Find each interior angle using the formula interior angle = ((n − 2) × 180) ÷ n.
Add the interior angles that meet at the point and subtract the total from 360° to get the missing angle.
spot the polygons meeting at the point count the sides on each regular polygon use interior angle = ((n − 2) × 180) ÷ n add the interior angles at the point do 360 − total to find the missing angle check your answer is sensible and positive
-