hey friend plz tell me formula of perimeter of semicircle
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The perimeter of a circle is π × d where d is the diameter so half of that is 1/2 π × d. But If you are going to walk around a semicircle you need to go half way around the circle and then across a diagonal to get back to where you started so the perimeter is 1/2 π × d + d.
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Hey
The perimeter of a circle is 2πr
so for semicircle just divide it by 2
we get πr
but here is problem we only get a perimeter of arc
so calculate the full perimeter of a semicircle just add diameter of a circle
that is we get
perimeter of a semicircle = πr + d
The perimeter of a circle is 2πr
so for semicircle just divide it by 2
we get πr
but here is problem we only get a perimeter of arc
so calculate the full perimeter of a semicircle just add diameter of a circle
that is we get
perimeter of a semicircle = πr + d
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