1.

if 0ne angle of a triangle is equal to sum of other two angle prove that the triangle is right angle triangle​

Answer»

Step-by-step explanation:

let the first two angle be a and b

then THIRD will be a+b(a/q)

sum of all angle of a triangle is 180 degree

first +second+ third angle =180

a+b+(a+b)

2a+2b=180

2(a+b)=180

a+b=90

means third angle is 90

so it is a right angle triangle

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