Question

if the radius of a sphere is increased by 50% find the increase per cent in its volume .

please give solution guys ❤❤❤❤❤​

Answer 1

Since we have given that

Radius of sphere is increased by 50%

Since area contains two r's so, we take it twice, in case of volume, we take r three times.

So, increase percentage in surface area

$50 + 50 + 50 \times \frac{50}{100} \\\\ = 25 + 100 \\\\ 125 \%$

So, increased percentage in surface area is 125%.

Similarly,

$125 + 50 + 125 \times \frac{50}{100} \\\\ = 237.5$

$Hence, increased percentage in volume is 237.5% and increased percentage in area is 125%.$

Answer 2

Answer:

237.5 is the answer please make as braniist