Question

Area and perimeter of circle and semicircle...do not copy from internet..it will be deleted..and the first answer will be marked as brainliest...promise..but it should be correct..

Answer 1

area of circle = πr2
perimeter of circle 2πr
perimeter of semi circle is 1/2 π × d + d.
area of semi circle is  1/2× pi ×r2
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Answer 2

(i) Area of circle = πr^2

(ii) Area of circle = (πr^2)/2 (or) (1/2) πr^2.

(i) Perimeter of circle = Circumference = 2πr

(ii) Perimeter of semi-circle = (1/2) * (π * d) + d.

Hope it helps!