Chapter 12 | Construction Of Quadrilaterals | Class-8 DAV Secondary Mathematics

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Chapter 12 | Construction Of Quadrilaterals | Class-8 DAV Secondary Mathematics

Unit 12 Worksheet 3 || Construction Of Quadrilaterals

1. Using ruler and compasses only:

(i) Construct a quadrilateral ABCD in which AB = 3.5 cm, BC = 6.5 cm, ∠A = 60°, ∠C = 120° and ∠D = 75°.

Answer (i):

Chapter 12 | Construction Of Quadrilaterals | Class-8 DAV Secondary Mathematics

(ii) Construct a quadrilateral ABCD in which AB = 4 cm, BC = 7 cm, ∠A = ∠C = 105° and ∠D = 60°.

Answer (ii):

(iii) Construct a quadrilateral PQRS in which PQ = 5 cm, QR = 6 cm, ∠P = 75°, ∠Q = 105°, ∠R = 90°.

Answer (iii):

(iv) Construct a quadrilateral ABCD in which AB = 4.5 cm, BC = 5 cm, ∠A = 60°, ∠B = 120° and ∠C = 60°.

Answer (iv):

2. Using ruler, compasses and protector, if necessary, construct the following quadrilaterals:

(i) a quadrilateral ABCD in which AB = 4 cm, BC = 4 cm, ∠A = 70°, ∠B = 80° and ∠C = 90°.

Answer (i):

(ii) a quadrilateral PQRS in which PQ = QR = 5 cm, ∠P = 100°, ∠Q = 80° and ∠R = 100°.

Answer (ii):

(iii) a quadrilateral ABCD in which AB = 5 cm, BC = 4 cm, ∠A = 80°, ∠B = 90°, ∠C = 100°.

Answer (iii):