Question

the base angle of an isosceles triangle measure (2m+15)° and (3m-5)° respectively. Waht is the measure of the 3rd angle.

Answer 1

Answer:

70⁰

Step-by-step explanation:

Given two equal angle of isoscles triangle 

are 55∘

Let third angle be x then

x+55+55=180∘ [angle sum property]

x=180−110∘

(x=70∘)

∴ the other angle is 70∘