Question

if the angle of a triangle are in ratio5:3:7 then find the smallest angle
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Answer 1

Step-by-step explanation:

let the 1st angle be 5x.

2nd angle be 3x.

3rd angle be 7x.

A/q

5x+3x+7x=180°

15x=180°

x=180/15

x=12° answer.

1st Angle=5×12=60°

2nd Angle=3×12=36°

3rd Angle=7×12=84° answer.

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Answer 2

5:3:7

5x
3x
7x

Angle sum of a triangle is 180
So, 5x+3x+7x=180
Now we will solve this equation
So, 15x=180
x=180/15
x=12
Now,
5x=5 into 12=60
3x=3 into 12=36
7x= 7 into 12=84

So, now we know all the angles

Thus, the smallest angle is 36

This is your answer =36
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