Question

Find the surface area of sphere of radius is 7.7

Answer 1

Step-by-step explanation:

Surface area of sphere = 4πr^2

Radius(r) = 7.7

Surface area= 4×22/7 ×7.7^2

=. 88/7 × 59.29

= 745.36 Answer

Answer 2

Answer:

Hence, surface area of Sphere will be 745.36 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 = 7.7 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,

$Area = 4 \Pi r^2\\=> 4 \times \frac{22}{7} \times 7.7 \times 7.7\\=>4 \times 22 \times 7.7 \times 1.1\\=>745.36\:cm^2$