Question

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Answer 1

Answer:

7/13+5/12

Lcm 156

(7*12 + 5*13)/156

(84+65)/156

149/156

This is the answer

all the angles =360 Degree

let the ratio be like 2x:5x:4x:1x

then

2x+5x+4x+1x=360

12x=360

x=360/12

x=30

Now the angles are

2*30=60

5*30=150

4*30=120

x=30

Hope it helps

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Answer 2

Answer:

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