Question

The angle of Pentagon are in a ratio , 4:5:11:13:12. Find the measure of each angle (ans: 48°,60°,132°,156°,144°)
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Answer 1

Answer:

total perimeter of pentagon=540°( angle sum of pen.)

sum of ratio=4+5+11+13+12=45

Ist no.=4/45×540=4×12=48°

2nd=5/45×540= 5×12=60°

3rd=11/45×540= 11×12= 132°

4th=13/45×540 =13×12= 156°

5th=12/45×540= 12×12= 144°

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