If one angle of a triangle is equal to the sum of the other two show that the triangle is a
right triangle
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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 proved
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