Question

The sum of two angles of a triangle is equal to its third angle. Find the measure of the third
angle.​

Answer 1

Answer:

180=a+b+c

180=2a+c

a=b=45

c=90

Answer 2

measure of the third

angle = 90°

Explanation:-

We know that, the sum of all the angles of triangle is 180°

Let, assume the first angle is 'a' , 'b' , 'c' .

ATQ,

sum of two angle of a triangle is third angle

so,

a+b = c

Now, we apply the formula :-

a + b + c = 180°

=>c + c = 180°

=>2c = 180°

=>c= 180/2 = 90°

So, from above the measure of third angle is 90°

I hope you find my answer helpful to you.