Question

Show that angles of an equilateral triangle is 180

Answer 1

sum of measure of all angle of triangle is 180

take any three angles

m<a +m<b+ m<c =180°

take all angles as x

x+x+x = 180

3x =180°

x=60

so, all the angles of triangle are 60°

Answer 2

Answer:

In order to prove that the sum of angles of a triangle is 180, you must know the theorems of angles of a triangle. We know that, alternate interior angles are of equal magnitude. This'll help us get the answer. ... ∠PAB = ∠ABC & ∠CAQ = ∠ACB BECAUSE alternate interior angles are congruent..