Ab Bc Ca 4 5 Cm

AB = BC = CA = 4.5 cm. Measure all the angles of the triangle. Are they equal ?

Answers:

Steps of Construction :
(1) Draw  a line AB = 4.5

(2) Using compasses and taking BC as centre, draw an arc of 4.5 cm radius.
(3) With AC as centre, draw an arc of 4.5 cm radius, which cuts the previous arc at C.
(4) Join AC and BC.
(5) Measurement, ∠A = ∠B = ∠C = 60°.