EASY
Lower Secondary Stage 9
IMPORTANT
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What is the size of an interior angle of a regular dodecagon?

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Important Questions on Angles and Geometrical Reasoning

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 19 - Angles and Geometrical Reasoning>Starting point>Q ●
Solve the problem involving angle properties of parallelograms: one angle of a parallelogram is 70°, what are the sizes of the other three angles of the parallelogram? 
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 19 - Angles and Geometrical Reasoning>Starting point>Q ●
The exterior angle of a triangle is 130° and one interior angle is 60°. What are the sizes of other two angles of a triangle?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 19 - Angles and Geometrical Reasoning>Exercise 1>Q 5
Which of these could not be the sum of the angles of a polygon?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 19 - Angles and Geometrical Reasoning>Exercise 1>Q 6
The exterior angle of a regular polygon is 36°. How many sides does it have?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 19 - Angles and Geometrical Reasoning>Exercise 1>Q 7
The interior angle of a regular polygon is 140° . How many sides does it have?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 19 - Angles and Geometrical Reasoning>Exercise 2>Q 5
In a diagram  ABC is a triangle and DBE is parallel to AC.What type of triangle is triangle ABC? Give reasons to explain your answers.