Question

if one angle of a triangle is equals to the sum of other two show that the triangle is a right angle​

Answer 1

Answer:

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Step-by-step explanation:

first take an angle to be x and it is giving energy that it is equal to its other two angle take them to be y and z by using angle sum property of triangle.

x +y+z=180

x+x=180 (y+z=x)

2x=180

x=180/2

x=90

hence prove

Answer 2

Step-by-step explanation:

when one of the angle of a traingle is 90 then the traingle is right angles triangle