Question

the TSA of sphere is 16πsq.units and TSA of a hemisphere with same radius is 8π".Do you agree with this statement?justify u r answer with a reason​

Answer 1

Answer:

Correct option is

C

3πr

2

The surface area of a sphere of radius r is 4πr

2

. Half of this is 2πr

2

.

If you have a hemispherical object then it has a base which is a circle of radius r.

The area of a circle of radius r is πr

2

and thus if the hemisphere is meant to include the base then the surface area is 2πr

2

+πr

2

=3πr

2

Step-by-step explanation:

Answer 2

Answer:

I think yes because hemisphere is half of sphere then the are also should be half of sphere