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

Question

Construct triangle ABC, when :

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

Answer 1

(1) Draw a line AB =4.5

(2) Using compasses and taking BC as center, draw an arc of 4.5 cm radius.

(3) With AC as center, 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°.