Practice Exercise 3 (11.3) - Chapter 3 : Quadrilaterals - CBSE Class 9 Maths
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Exercise 3

Practice - Exercise 3

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

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

💡 Hint: Use the angle sum property of quadrilaterals.

Question 2 Easy

In a parallelogram, one angle is 60°. Find the remaining three angles.

💡 Hint: Remember that opposite angles are equal.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the angle sum of a quadrilateral?

180 degrees
360 degrees
270 degrees

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

Question 2

True or False: A rhombus is a type of parallelogram.

True
False

💡 Hint: Recall the definitions of parallelograms.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A quadrilateral has angles of 75°, 85°, and 95°. Prove the fourth angle using properties discussed.

💡 Hint: Apply the angle sum property.

Challenge 2 Hard

In a parallelogram, if one side is 8 cm and the height is 5 cm, find the area of the parallelogram.

💡 Hint: Recall the area formula for parallelograms.

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Reference links

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