Question

What is the volume and surface area of a sphere of radius 2.1 cm

Answer 1

Answer:

Simple yes the formula and you will get the answer

Answer 2

Answer:

volume of sphere = 38.8 cm^3

surface area of sphere = 55.5 cm^2

Step-by-step explanation:

volume of a sphere

formula :

V = $\frac{4}{3}$$\pi$$r^{3}$

place the value of the radius in the equation

= $\frac{4}{3} *\pi * 2.1^{3}$

=38.7923

to 3sf

the volume  = 38.8 cm^3

surface area of a sphere

formula:

A = 4$\pi r^{2}$

place the value of the radius in the equation:

 = 4$\pi *2.1^{2}$

= 55.41769

to 3sf

the surface area  = 55.5 cm^2