the area of circular lawn is 154 metre square find its circumference
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Area of the circle=πr²=154cm²
22/7×r²=154cm²
r²=154×7/22
r²=7×7
r=7cm
Circumference=2πr=2×22/7×7=44cm
22/7×r²=154cm²
r²=154×7/22
r²=7×7
r=7cm
Circumference=2πr=2×22/7×7=44cm
Suravee:
Sorry unit will be meters...by mistakenly I had written centimetres
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