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Grade 10 Interior & Exterior Angles of Polygons Worksheet with Answers
Grade 10 (US) · Year 11 (UK) · Class 10 (India) · Math
Unit 5: Polygons & CirclesPolygon AnglesCCSS G-CO.C.11
Angle sums of polygons and the interior and exterior angles of regular polygons. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comInterior & Exterior Angles of Polygons
Grade 10 · Math
Name
Class
Date
Learning goal: Polygon Angles · CCSS G-CO.C.11
Directions: Use the pictures to help you. Solve each problem. Show your work, then write your answer in the box.
What is the sum of the interior angles of a 3-sided polygon?
Answer: 180°
- 1
What is the sum of the interior angles of a 8-sided polygon?
Answer - 2
What is the sum of the interior angles of a 20-sided polygon?
Answer - 3
What is each interior angle of a regular 24-sided polygon?
Answer - 4
What is each interior angle of a regular 30-sided polygon?
Answer - 5
What is the sum of the interior angles of a 18-sided polygon?
Answer - 6
What is each exterior angle of a regular 18-sided polygon?
Answer - 7
What is each exterior angle of a regular 24-sided polygon?
Answer - 8
What is each exterior angle of a regular 5-sided polygon?
Answer - 9
What is the sum of the interior angles of a 30-sided polygon?
Answer - 10
What is each exterior angle of a regular 10-sided polygon?
Answer - 11
What is each interior angle of a regular 20-sided polygon?
Answer - 12
What is each interior angle of a regular 15-sided polygon?
Answer
★ Challenge corner for fast finishers
At a meeting, 6 people each shake hands once with everyone else. How many handshakes take place?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/math/10/polygon_angles
Answer key — Interior & Exterior Angles of Polygons (Grade 10)
- 1.1080°
- 2.3240°
- 3.165°
- 4.168°
- 5.2880°
- 6.20°
- 7.15°
- 8.72°
- 9.5040°
- 10.36°
- 11.162°
- 12.156°
- ★15
Answer key (click to show)
- 1.1080°
- 2.3240°
- 3.165°
- 4.168°
- 5.2880°
- 6.20°
- 7.15°
- 8.72°
- 9.5040°
- 10.36°
- 11.162°
- 12.156°
- ★15 (challenge corner)
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