Question

In an isosceles triangle, the base angle is twice as large as vertex angle. find the angle of the triangle

Answer 1

solution.

In a isosceles triangle base angles are same.

so, let the base angle be X°

ATQ,

=> 2x+2x+x=180°

=> 5x = 180°

=> x= 30

Now, vertical angle= 30°

Base angles= 2*30= 60°

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hope it help you✌✌

Answer 2

36⁰,72⁰,72⁰.

Let the equal angles be x, x. Vertex angle =A

x=2A

So x+x+A=180⁰

(Angle sum property)

2x+A=180⁰

4A+A=180⁰

5A=180⁰

A= 180⁰/5=36⁰

x=2A=72

Angles of triangle

36⁰,72⁰,72⁰.