Question

find the curved surface area and total surface area of statue of unity​ ​

Answer 1

Answer:

Csa = 4pie r cube of spehere

Answer 2

Answer:

We have,

R=4.3 cm

r=2.1 cm

We know that the curved surface area of the hollow hemisphere

=2πR

2

So,

=2π(4.3)

2

=36.98π cm

2

We know that the total surface area of the hollow hemisphere

=2πR

2

+2πr

2

+π(R

2

−r

2

)

So,

=2π(4.3)

2

+2π(2.1)

2

+π((4.3)

2

−(2.1)

2

)

=36.98π+8.82π+π((4.3)

2

−(2.1)

2

)

=36.98π+8.82π+14.08π

=59.88πcm

2

Hence, this is the answer.