4. The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the mtio of surface areas of the balloon in the two cases.

Question

Pawan Prajapati · Accepted Answer

81 = Surface area with radius 7 cm = 4lt(7)2 cm.2. = Surface area with radius 14 cm = 4Jt(14)2 cm2• Si 41t(7)2 1 - = 2 ::::::> 81 : 82 = 1 : 4. 47t(14) 4

9 grade maths> 4. The radius of a spherical balloon inc...

4. The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the mtio of surface areas of the balloon in the two cases.

Harshit Singh , 5 Years ago

Pawan Prajapati

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9 grade maths> 4. The radius of a spherical balloon inc...

4. The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the mtio of surface areas of the balloon in the two cases.

Harshit Singh , 5 Years ago

Pawan Prajapati

LIVE ONLINE CLASSES

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