Question

In the isosceles triangle the base angle are equal,. The vertex angle is 30°. Find the measure of the base angles of the triangle​

Answer 1

Answer:

Base angles = 30

Its is an isosceles triangle so two angles are equal

let two angles be x,x

ATQ

30+x+x=180( sum of all the angles is 180)

30+2x=180

2x=180-30

2x=150

x=150/2

=75

measure of base angles are 75 degree each

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Answer 2

Answer:

If a triangle is ABC,

let's consider vertex as A and base angles as B & C. As B and C are equal we can take them as x, each.

A + B + C = 180 ( sum of angles in a triangle )

A + x + x = 180

A + 2x = 180

30 + 2x = 180

2x = 150

x = 75

therefore each base angle is 75 degree