Question

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

Answer 1

Answer:

We know that circumference =2pir

Therefore area =}

2pir=72

Rherefore radius equals 11.45 on further calculations

Therefore area = pi*r*r

22/7*11.45.11.45

= 412.036 sq centimetre or precisely 412 sq cm on rounding off

Step-by-step explanation:

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