Question

TSA of a hemisphere is 462cm² its CSA is a.231cm² b.300cm² c.308cm² d.308πcm²​

Answer 1

Answer:

tsa = 3 pie r^2 = 462

csa = 2 pie r^2 = x

Step-by-step explanation:

r = 462 /3 pie = $\sqrt{154/pi}$

r= $\sqrt{x/2 pie}$

so 154/pi = x/2pi

154=x/2

x= 308 cm cube

there fore option c