Question

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if the sizes of the angles of a triangle are 3x , 5x and 4x , find the smallest angle of the triangle.

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Answer 1

Given,

the angles of a triangle are 3x,5x and 4x

we know that sum of all the angles of a triangle are 180'

so,3x+5x+4x=180'

12x=180'

x=180'/12

x=15

so,angles are

3*15=45'

5*15=75'

4*15=60'

so,smallest angle is 45'

Answer 2

Hello friend,
Here's your answer:

Explanation in the pic.
Answer: 45°.

Hope my answer helps you.