Question

if a vertex angle of isosceles triangle is 60' find the base angles
​

Answer 1

Step-by-step explanation:

base angles of an isosceles triangle are equal so the sum of the 2 base angles is equal to 120 degrees. the sum of all 3 angles of a triangle is 180 degrees, so the third angle is 180 - 120 = 60 degrees

Answer 2

Let the base angles be equal to x

Vertex angle = 60⁰

So, in a triangle sum of all the angles is equal to 180⁰

Therefore,

60⁰ + x + x = 180⁰

2x = 180⁰ - 60⁰

x = 120⁰/2

x = 60⁰

Therefore base angles equal to 60⁰