Math, asked by ayaanahmedqureshi365, 9 days ago

the radius of a balloon is 3.5 cm when we fill the air in it then it's radius becomes 10.5cm.What area increased when we fill air it with air?

Answers

Answered by harsh7084489713

0

Step-by-step explanation:

area of sphere-4πr²

area of ballon witgout air=154

area of ballon after air filled in it=1386

1386-154=1232

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