Find the percentage increase in the volume of a sphere whose radius is increased by 25% .
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1
Step-by-step explanation:
25+25+25×25/100=56.25
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Answer:
If the radius of the sphere is increased by 25% it means that the new radius will be: r + 25% of r = 125r/100. So, now we can calculate the volume and surface area of new sphere by taking new radius as 125r/100. So, the new volume = 4π(125/100r)³/3 and the new surface area = 4π(125r/100)².
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