Question

The sum of angles of a triangle is 180० . The ratio of the angles is 2:2:5. Find the angles of the triangle.​

Answer 1

Let angles = 2x, 2x, 5x ...

hence, 2x+2x+5x=180°

=> 9x=180°

So, x= 20°

Hence, angles = 40°, 40°, 100°...

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Answer 2

The 3 angles ratio are 2:3:5

So 2X,3X,5X are the angles

2X+3X+5X =180 (As per the question)

10X=180

X=18 degrees

So 3 angles are

2*18=36

3*18=54

5*18=90

The 3 angles are 36,54,90 and the triangle is right-angled triangle

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