Question

If one angle of triangle is equal to the sum of the other two then triangle is

Answer 1

Answer:

Then triangle is right angle triangle

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Answer 2

Let "a" be the measure of the angle A;

Let "b" be the measure of the angle B;

Let "c" be the measure of the angle C.

Then

a + b + c = 180, (1)

a + b = c. (2) (given).

Add the equation (1) and (2). You will get

2(a+b) + c = 180 + c.

Simplify:

2(a+b) = 180 ---> a + b = 180/2=90