Practice Summary (10) - Chapter 3 : Quadrilaterals - CBSE Class 9 Maths
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Practice Questions

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Question 1 Easy

Find the measure of the fourth angle of a quadrilateral if the other three angles are 110°, 85°, and 95°.

💡 Hint: Remember the angle sum property.

Question 2 Easy

What is the sum of the interior angles of a quadrilateral?

💡 Hint: Think about how many triangles can fit inside a quadrilateral.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

How many sides does a quadrilateral have?

4
3
5

💡 Hint: Think about the prefix 'quad'.

Question 2

The sum of the interior angles of a quadrilateral is ___?

💡 Hint: Consider how a quadrilateral can be divided into triangles.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A quadrilateral has three angles measuring 90°, 85°, and 95°. Calculate the unknown angle and interpret why it is essential in a real-world scenario.

💡 Hint: Remember the angle sum property.

Challenge 2 Hard

Prove that the diagonals of a kite intersect at right angles, and explore where this can be relevant in design or art.

💡 Hint: Draw the kite and analyze the triangles formed.

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