The surface area of a sphere can be approximated as follows:
Surface area = 42
where ris the radius of the sphere;
TI is a constant that is roughly equal to 3.
Using the simple approximation above, calculate the surface area of a sphere
with a radius of 7 meters.
O A. 588 m2
O B. 1,372 m2
O C. 84 m2
O D. 14 m²

Question:

The surface area of a sphere can be approximated as follows:

Surface area = 4πr2;

where r is the radius of the sphere;

π is a constant that is roughly equal to 3.

Calculate the surface area of a sphere with a radius of 7 meters using the simple approximation above.

Solution:

The surface area of a sphere is given as:

Where, "r" is the radius of sphere

π is a constant that is roughly equal to 3

From given,

Radius = 7 meter

Substitute r = 7 in given formula

Thus the surface area of a sphere  is 588 square meter

588 m2

Step-by-step explanation:

APEX