Question

The circumference of semi circular piece of design is 72cm. Find its area.

Answer 1

Answer:

Area of the semicircle = 308cm²

Explanation:

Let the radius of a semi circle

= r cm

It is given that,

circumference (C) = 72cm

πr+2r = 72

=> r(π+2)=72

=> r( 22/7 + 2 ) = 72

=> r[(22+14)/7] = 72

=> (36r)/7=72

=> r = (72×7)/36

=> r = 2×7

=>r = 14 cm

Now ,

Area (A) = πr²/2

= (22/7)×(14)²/2

= (22×14×14)/14

= 22×14

= 308 cm²

Therefore,

Area (A) = 308cm²

••••

Answer 2

Answer:

308

is the answer

Step-by-step explanation:

I Hope u likes it