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.Using the simple approximation above, calculate the surface area of a sphere with a radius of 2 meters. A 16 m2 B 9 m2 C24 m2 D 48 m2

Answer 1

D.) 48m^2

Hope this helps!

Answer 2

D. 48
`m^2`

Step-by-step explanation:

Since surface area =
`4\pi r^2` and r = 2 while
`\pi` = 3, the problem can be solved by simple substitution. Substitute for r and
`\pi` in the equation

Surface area = 4 x 3 x 2 x 2

= 48
`m^2`

The surface area of a sphere with a radius of 2 meters is 48
`m^2`.

The correct option is D.