Question

Four alternatives are given for each of the following
questions / incomplete statements. Only one of them is
correct or most appropriate. Choose the correct
alternative and write the complete answer along with its
letter of alphabet.

1)The surface area of a sphere of radius 7 cm is​

Answer 1

Step-by-step explanation:

surface area of sphere is 4πr²

area=4×22/7×(7)²

=616cm²