Question

if triangle is a isosceles. Its two angle will be equal find the measure of the
third angle of a triangle.​

Answer 1

Answer:

third angle will be smaller than the other two angle.

Answer 2

Step-by-step explanation:

let the third angle be 'x'

and base angles both be 'y' (in isosceles triangle angle opposite to equal sides are equal)

w.k.t.

sum of angles of triangle = 180°

so

x+y+y = 180°

x + 2y = 180°

x =180° - 2y

so to find the third angle we should subtract twice the any other angle in triangle from 180° degree

or third angle = 180- (2× any one of equal angles)

hope it helps you

please mark me as brainlist ( because it helps me)