CBSE Class 9 Mathematics Quadrilaterals Assignment Set C

Quadrilaterals

Q 1 Name a quadrilateral whose each pair of opposite sides is equal.

Q 2 What is the sum of two consecutive angles in a parallelogram?

Q 3 The angles of quadrilateral are respectively 100 , 30 , 92 and x. Find the value of x.

Q 4 The angles of quadrilateral are in the ratio 3:5:9:13. Find all the angles of the quadrilateral.

Q 5 Thee sides AB and CD of a parallelogram ABCD are bisected at E and F. Prove that EBFD is a parallelogram.

Q 6 In a triangle ABC, P,Q and R are the mid – points of sides BC, CA and AB respectively. If AC = 21 cm, BC = 29 cm and AB = 30 cm, find the perimeter of the quadrilateral ARPQ.

Q 7 Find the four angles P, Q, R and S in the parallelogram PQRS as shown below.

Q 8 Two opposite angles of a parallelogram are (5x + 1)° and (49 – 3x)°. Find the measure of these opposite angles of the parallelogram.

Q 9 Prove that each of the four sides of a rhombus is of the same length.

Q 10 ABCD is a rhombus. Show that diagonals AC bisects angle A as well as angle C.

Click on link below to download CBSE Class 9 Mathematics Quadrilaterals Assignment Set C