Class 9 Mathematics · Chapter 9 · Test 3
Regular Polygons and Applications
40 MCQs
40 questions · 35 min · 40 marks
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Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
A regular polygon has:
- Aall sides equal only
- Ball sides and all angles equal
- Call angles equal only
- Dno equal sides
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Answer: B
A regular polygon is both equilateral and equiangular.
Question 2
The sum of the interior angles of an n-sided polygon is:
- An × 180°
- B(n − 1) × 180°
- C(n − 2) × 180°
- D(n + 2) × 180°
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Answer: C
The sum is (n − 2) × 180°.
Question 3
Each interior angle of a regular n-sided polygon is:
- A(n − 2) × 180°/n
- B360°/n
- C(n − 1) × 180°/n
- Dn × 180°
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Answer: A
The interior angle sum is divided by n.
Question 4
Each exterior angle of a regular n-sided polygon is:
- A(n − 2) × 180°/n
- B180°/n
- Cn × 360°
- D360°/n
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Answer: D
The exterior angles add up to 360°.
Question 5
The sum of all exterior angles of any polygon is:
- A180°
- B360°
- C720°
- Ddepends on n
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Answer: B
The exterior angles of any polygon sum to 360°.
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