Question

The angels of a triangle are in the ratio 3:1:5.the measure of the largest angle is.

Answer 1

Answer:

let each angle=x

sum of all angles of triangles are180

three sides are x,3xand5x

x+3x+5x=180

9x=180

x=20

largest angle =5*20 =100

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Answer 2

Answer:

let 3 angles of triangles be 3x and 1x and 5x .

the sum of three angles of a triangle is 180 degree

3x+x+5x=180

9x=180

x=180÷9

x=20

1st angle = 3x=3×20=60degree

2nd angle =1x=1×20=20degree

3rd angle=5x=5×20=100degree

thus,the largest angle is 100 degree

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