Math, asked by meenakumarigula, 1 year ago

four angles of a pentagon are 100°,175°,85°and 75°. find the fifth angle. I will mark the best answer as brainliest

Answers

Answered by geniusboy38
40
180 × 3
=540

Fifth angle
=540-(100+175+85+75)
=540-435
=105

meenakumarigula: wrong ans.
geniusboy38: sorry bhai subtract karne me thodi mistake ho gayi
meenakumarigula: OK no problem and thanks
geniusboy38: your welcome brother.
Answered by Pratyasa1
25
The sum of the interior angles of any polygon is
180(n-2)
where, n is the no. of sides of the polygon
Pentagon is a polygon with 5 sides... so,
180(n-2)
=180(5-2)
=180*3
=540 degrees
so the sum of the interior angles of the Pentagon is 540 degrees
Let the unknown angle be x
=100+175+85+75+x=540
435+x=540
x=105 degree
HOPE THE ANSWER IS CORRECT

meenakumarigula: wrong
Pratyasa1: I am extremely sorry
meenakumarigula: you have to write 445 as 435
Pratyasa1: I have corrected it.. just check it out
Pratyasa1: Ya I know... silly mistakes
meenakumarigula: otherwise I will mark you as brainliest
Pratyasa1: no problem...
meenakumarigula: ok
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