Question

Find the value of 186.34+8.91+100.5+47.8
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Answer 1

Answer:

343.55

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Answer 2

As we know that,

Area of circle =πr2

Area of circle =186.34cm2(Given)

∴πr2=186.34

⇒r2=186.34×227

⇒r=8.47×7

⇒r=59.29=7.7cm

Therefore,

Circumference of circle =2πr=2×722×7.7=48.4cm

As we know that,

Area of circle =πr2

Area of circle =186.34cm2(Given)

∴πr2=186.34

⇒r2=186.34×227

⇒r=8.47×7

⇒r=59.29=7.7cm

Therefore,

Circumference of circle =2πr=2×722×7.7=48.4cm