Question

How do u solve these??​

Answer 1

isosceles triangle has its 2 side equals and thus 2 angles opposite to equal side are equal.

consider in a triangle ABC

AB = AC then Angle B = Angle C

so here given angle B = 36

so angle C = 36

now in a triangle sum of all 3 angles is 180

so

angle A + angle B +angle C = 180

angle A + 36 +36 = 180

angle A = 180 - 72 = 108

2)

in a right angle triangle one angle is 90. another one is given as 28

so we kNow sum of all 3 angles is 180

so

third angle + 90 + 28 = 180

third angle = 180 - 118 = 62