RS Aggarwal Class 7 Math Seventeenth Chapter Constructions Exercise 17B Solution

EXERCISE 17B

(1) Construct a ∆ABC in which BC = 3.6 cm, AB = 5 cm and AC = 5.4 cm. Draw the perpendicular bisector of the side BC.

(2) Construct a ∆PQR in which QR = 6 cm, PQ = 4.4 cm and PR = 5.3 cm. Draw the bisector of ∠P.

(3) Construct an equilateral triangle each of whose sides measures 6.2 cm. Measure each one of its angles.

(4) Construct a ∆ABC in which AB = AC = 4.8 cm and BC = 5.3 cm. Measure ∠B and ∠C. Draw AD ⊥ BC.

(5) Construct a ∆ABC in which AB = 3.8 cm, ∠A = 60^o and AC = 5 cm.

(6) Construct a ∆ABC in which BC = 4.3 cm, ∠C = 45^o and AC = 6 cm.

(7) Construct a ∆ABC in which AB = AC = 5.2 cm and ∠A = 120^o. Draw AD ⊥ BC.

(8) Construct a ∆ABC in which BC = 6.2 cm, ∠B = 60^o and ∠C = 45^o.

(9) Construct a ∆ABC in which BC = 5.8 cm, ∠B = ∠C = 30^o. Measure AB and AC. What do you observe?

(10) Construct a ∆ABC in which AB = 7 CM, ∠A = 45^o and ∠C = 75^o.

(11) Construct a ∆ABC in which BC = 4.8 cm, ∠C = 90^o and AB = 6.3 cm.

(12) Construct a right-angled triangle one side of which measures 3.5 cm and the length of whose hypotenuse is 6 cm.

(13) Construct a right triangle having hypotenuse of length 5.6 cm one whose acute angles measure 30^o.