Question

find the surface area of sphere of radius 3.5cm

Answer 1

Radius is equal to 3.5 CM

Surface area of a sphere is equal to 4 π R Square..

Therefore surface area of the sphere equal to- 4*(22/7)* 3.5*3.5 =154 sq cm.

Answer 2

Answer:

The surface area of the given sphere is 154 cm².

Step-by-step explanation:

The radius of a sphere is 3.5 cm.

The surface area of the sphere is

$A=4\pi r^2$

Where, r is the radius.

The surface area of the given sphere is

$A=4\times \frac{22}{7}\times (3.5)^2$

$A=154$

Therefore the surface area of the given sphere is 154 cm².