Question

In a Pentagon two angles are 40degree and 60 degree and rest are in the ratio 1:3:7 find the biggest angle of the Pentagon

Answer 1

Answer:

The biggest angle of Pentagon is 280°

Answer 2

Answer:

Total interior angle of a pentagon 540°

1:3:7=Let us conider the angles as 1x , 3x , 7x

Given:

40+60+1x+3x+7x=540

11x+100=540

11x=440

x=40

Therefore,

1x=1*40=40°

3x=3*40=120°

7x=7*40=280°

So the largest angle is 280°.

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