CBSE Class 8 Maths Understanding Quadrilaterals Worksheet

Question. ABCD is a parallelogram. The perimeter is 144 cm and BC = 20 cm then AB = ?

Answer : 52 cm

Question. ABCD is a parallelogram. If ∠C = 80° then what is ∠B + ∠D

Answer : 200°

Question. In a parallelogram ABCD ∠B = 2 ∠C. What is the degree measure of ∠B and ∠C.
Answer : 120°, 60°

Question. In the figure ABCD is a rhombus in which AO = 4cm and OB = 3 cm. What is the length of the side of the rhombus?

Answer : 5 cm

Question. DEFG is a parallelogram. Find the perimeter of the given figure.

Answer : 21 cm

Question. Complete the following :
The opposite sides of a parallelogram are __________.
Answer : equal.

Question. ABCD is a rhombus. If AB = 4 cm then what is the perimeter of ABCD?
Answer : 16 cm

Question. Which figure is this?

Answer : rectangle

Question. Complete the following :
The opposite angles of a parallelogram are __________.
Answer : equal

Question. ABCD is a parallelogram. If ∠B = 130 , then what is ∠C

Answer : 50°

Question. In a parallelogram ∠F : ∠G = 2 : 3. What is the degree measure of ∠F and ∠G.

Answer : 72°, 108°

Question. Complete the following :
The diagonals of a parallelogram ___________ each other
Answer : bisect

Question. In the fig. ABCD is a parallelogram Find x.

Answer : 25°

Question. In a rhombus RSTU if ∠R 120 , then what is the measure of ∠S.
Answer : 60°

Question. In a parallelogram ABCD the point of intersection of both diagonals AC and BD is O.
If AC = 16 cm and BD = 12 cm then what is OA and OD.

Answer : 8 cm, 6 cm

Question. The ratio of two adjacent sides of a parallelogram is 5:4. Its perimeter is 18 cm then, what is the length of the adjacent sides.
Answer : 5 cm, 4 cm

Question. PQRS is a parallelogram and diagonals PR and SQ bisect at O. If PO = 3.5 cm and OQ = 4.1 cm. What is the length of the diagonals.

Answer : 7 cm, 8.2 cm

Question. In the given figure PQRS is a ││gm, Find PS + SR.

Answer : 10 cm

Question. PQRS is a rhombus. If PO = 4 cm and OQ = 3 cm then what is PR + SQ?

Answer : 14 cm

Question. PQRS is a rhombus with PQ = 10 cm. If OQ = 6 cm then what is the length of the diagonal PR?

Answer : 16 cm
 

Please click on below link to download CBSE Class 8 Maths Understanding Quadrilaterals Worksheet