iv) If the perimeter of semi-circular pratractor is 36 cm,
then its diameter is
a) 10 cm
b) 12 cm
c) 14 cm
d) 15 cm
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iv) If the perimeter of semi-circular pratractor is 36 cm,
then its diameter is
a) 10 cm
b) 12 cm
c) 14 cm
d) 15 cm
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12 cm is answer. ..........
Answer:
c) 14 cm
Step-by-step explanation:
Perimeter of semicircle=pi*d/2
36=3.14*(d/2)+d
36*2=3.14d+2d
5.14d=72
d=72/5.16
d=13.95=14 cm
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