Question

How to do this question?
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Answer 1

Step-by-step explanation:

Hey mate!! here's your answer

the four angles of pentagon are 115° each

as we know that the total angle sum of a pentagon is 540°

so ,

let the 5th angle of the pentagon be x °

angle 1 + angle 2 + angle 3 + angle 4 + angle 5 = 540°

115° + 115° + 115° + 115° + x = 540°

460° + x = 540°

x = 540° - 460°

x = 80°

therfore the fifth angle of the pentagon is 80°

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