Question

A necklace has a single pearl with a radius of 2.1 millimeters. What is the volume of the pearl? Round to the nearest tenth

Answer 1

The volume of pearl is 39 cubic millimeters, if A necklace has a single pearl with a radius of 2.1 millimeters.

Explanation:

The given is,

Pearl with a radius of 2.1 millimeters

Step:1

Pearl shape general looks like a sphere,

Volume of sphere,

`V= (4)/(3)r^(3)`...............................(1)

Where, r - Radius of sphere

From the given values,

r - 2.1 millimeters

Equation (1) becomes,

`= (4)/(3)\pi (2.1)^(3)`

Substitute the value of
`\pi`,

`= (1.33333333)((22)/(7) ) (9.261)` ( ∵
`\pi = (22)/(7)` )

`=(4.190476)(9.261)`

= 38.79

≅ 39 cubic millimeters

Volume of pear, V = 39 cubic millimeters

Result:

The volume of pearl is 39 cubic millimeters, if A necklace has a single pearl with a radius of 2.1 millimeters.