area of circle is 1264square centimetre,find its circumference
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area of circle = πr²
1264 = 22/7 x r²
r² = 1264 x 7/22 = 402.1818 cm²
r = √402.1818 = 20.054 cm
circumference of circle = 2πr = 2 x 22/7 x 20.054 = 126.0537 cm
1264 = 22/7 x r²
r² = 1264 x 7/22 = 402.1818 cm²
r = √402.1818 = 20.054 cm
circumference of circle = 2πr = 2 x 22/7 x 20.054 = 126.0537 cm
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area=πr²=1264cm²
r²=1264×7/22
r²=402.18
r= 20.05cm
Circumference=2πr=2×22/7 ×20.05
=882.2/7 =126.03cm
r²=1264×7/22
r²=402.18
r= 20.05cm
Circumference=2πr=2×22/7 ×20.05
=882.2/7 =126.03cm
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