Practice Exercise 8 (11.8) - Chapter 3 : Quadrilaterals - CBSE Class 9 Maths
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Exercise 8

Practice - Exercise 8

Learning

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 80°, 70°, and 90°.

💡 Hint: Use the angle sum property of quadrilaterals.

Question 2 Easy

In a rectangle, one side is 4 cm and the other side is 3 cm. What is the area?

💡 Hint: Use Area = Length × Width formula.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the sum of interior angles in a quadrilateral?

180°
360°
360° - (Angle1 + Angle2)

💡 Hint: Remember to use the angle sum property.

Question 2

True or False: In a parallelogram, the diagonals are equal in length.

True
False

💡 Hint: Visualize different types of parallelograms.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

The sides of a parallelogram measure 10 cm and 6 cm. If the height from the shorter side is 4 cm, calculate the area.

💡 Hint: Use the formula Area = Base × Height.

Challenge 2 Hard

Two angles of a quadrilateral are equal, and the third angle is 80°. If the sum of all angles is 360°, find the angles.

💡 Hint: Set up the equation Z + Z + 80 + = 360.

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