Question

Two angles of a triangle are 54 degree and 54 degree find the third angle

Answer 1

Answer:

let the third angle be x

then,we know that sum of all angles of a triangle is 180

degree

54 degree + 54 degree+ x = 180 degree

108 degree + x = 180 degree

x = (180 -108) degree

= 72 degree

so,the third angle is 72 degree

Answer 2

Given data,

The two angles of a triangle is $54^{0} ,54^{0}$

Now we have to find the third angle of the triangle.

As we know the sum of angles of triangle is $180^{0}$

∠$A+$∠$B+$∠$C=180^{0}$

Here,

$A=54$

$B=54$

$C=?$

We have to find the third angle

$54+54+C=180$

$108+C=180$

$C=180-108$

$C=72$

Therefore, the third angle is $72^{0}$