## 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}.**