find area of semicircle whose circumference is 18 centimetre
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Answered by
0
Answer:
Circumference of semicircle= pi r
18=22/7 r
18×7÷22=r
63/11=r
Area of semicircle =pi r^2
=22/7 (63/11)^2
=22/7×63/11×63/11
=18×63/11
=103.01 m sq.
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Answered by
0
Answer:
567/11 sq.cm
Step-by-step explanation:
circumference of semi circle= pi.r
given circumference = 18 cm
=> 18 = pi.r
18= 22/7. r
thus r= 63/11
area of semi circle = (pi.r.r.)/2
area= 22/7 . 63/11 . 63/11 . 1/2
= 567/11 sq.cm
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