Find the area of a circle whose circumference is 154cm
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20
Answer:
Circumference of the circle=154 cm
2πr=154
2r=154/(1/π) =(154/22)*7=7*7=49
r=49/2
Therefore, radius of the circle=49/2 cm(I have not make it 24.5 to make the calculation easier)
Area of the circle=πr²
=22/7*(49/2) ²
=(22/7)*(2401/4) cm²
=(22*2401)/(7*4) cm²
=(52822/28) cm²
=1886.5 cm² (Ans)
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Answer:
i don't know the answer
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