Question

Construct equilateral triangle with sides, ABC such that AB = AC = CB = 10.5 cm. Measure and write down the size of angle < ABC.

Answer 1

∠ABC = 60°

Explanation:

All angles in equilateral triangles are equal.

all angles in triangles added together = 180°

180°/3 = 60°

All angles in equilateral triangles are equal to 60°.