Question

Find the surface area of the sphere having radius = 3.5cm

Answer 1

surface area of a sphere= 4*pi*r2

=4*3.14*3.5*3.5

=154 cm2

Answer 2

Answer:

Hence, surface area of Sphere will be 154 Sq. cm

Step-by-step explanation:

In context to question asked,

We have to determine the surface area of the sphere.

As per question,

We have,

Radius of sphere = 3.5 cm

As we know that,

Sphere is a three dimensional figure.

The surface area of sphere can be determined by using formula,

$Area = 4 \Pi r^2$

So, for determining the surface area we will put the value of r given in the question in above formula,

Thus we will get,

$Area = 4 \Pi r^2\\=> 4 \times \frac{22}{7} \times 3.5 \times 3.5\\=>4 \times 22 \times 3.5 \times 0.5\\=>154\:cm^2$