Practice Exercise 11 (11.11) - Chapter 3 : Quadrilaterals - CBSE Class 9 Maths
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Exercise 11

Practice - Exercise 11

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 110°, 85°, and 95°.

💡 Hint: Use the angle sum property.

Question 2 Easy

In a parallelogram, one angle is 60°. Find the other 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 sum of the interior angles of any quadrilateral?

360 degrees
180 degrees
90 degrees

💡 Hint: Remember how many triangles can fit inside it.

Question 2

True or False: Opposite sides of a parallelogram are always perpendicular.

True
False

💡 Hint: Visualize a square to see the difference.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A rectangle has a length of 10 cm and an unknown breadth. If the area of the rectangle is 50 cm², find the breadth.

💡 Hint: Recall the area formula for rectangles.

Challenge 2 Hard

Show that the diagonals of the rhombus intersect at right angles.

💡 Hint: Utilize properties of angles and triangles.

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Reference links

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