How to find perimeter and area of semicircle whose diameter is 14 cm
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perimeter πr and area πr^2/2 where r would b 7 cm....
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Since, the diameter of the circle (d)=14cm
the radius of the circle (r)=14/2cm=7cm
Since, perimeter of a circle = 2pie ×r unit
So, perimeter of the given circle =2×22/7×7cm
=44cm.
Short way
Perimeter of a circle =pie ×d unit
Perimeter of the given circle =22/7×14cm
=44cm.
Somebody was commenting on my answer , I want to know who he was.
Thanks , for comments.
the radius of the circle (r)=14/2cm=7cm
Since, perimeter of a circle = 2pie ×r unit
So, perimeter of the given circle =2×22/7×7cm
=44cm.
Short way
Perimeter of a circle =pie ×d unit
Perimeter of the given circle =22/7×14cm
=44cm.
Somebody was commenting on my answer , I want to know who he was.
Thanks , for comments.
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