Q8 of 805 Page 12

Construct an isosceles whose base measures 5 cm and each of equal sides’ measures 4.5 cm.

Steps of Construction:

1. Draw a line segment QR = 5 cm which is the base.

2. With centre Q and radius 4.5 cm, draw an arc.

3. With centre R and same radius, draw another arc which cuts the previous arc at P.

4. Join PQ and PR.

Therefore, Δ PQR is the required isosceles triangle.

Construct a in which BC = 5 cm, AB = 3.8 cm and AC = 2.6 cm.

Construct a in which BC = 4.7 cm, B = 60° and C=30°. Measure A.

Construct an isosceles triangle whose base is 4.8 cm and whose vertical angle is 80°.

Construct a right-angled triangle whose hypotenuse measures 5.3 cm and the length of one of whose sides containing the right angle measures 4.5 cm.