Question

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

Answer 1

Answer:

Step-by-step explanation:

One angle be x , then two angles of same measure be 2x

Third angle be y

Answer 2

Answer:

let one angle to be x

second angle to be y

third angle=x+y

A. T. Q

x+y+x+y=180(angle sum property)

2x+2y=180

2(x+y) =180

x+y=180/2

x+y=90

hence third angle is 90°

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