Question

A lamp shade has a radius of 9 inches. What is the circumference of the top of the shade? Use 3.14 to approximate pi. Round your answer to the nearest whole number.

Answer 1

Answer:

The circumference of the lamp shade is 57 inches.                      

Step-by-step explanation:

Given : A lamp shade has a radius of 9 inches.

To find : The circumference of the top of the shade

Solution : A lamp shade is in a sphere form,

So, formula to find the circumference of sphere is

$C=2\pi r$

Now, the radius of lamp is 9 inches and $\pi=3.14$

Substitute the value in the formula we get,

$C=2\pi r$

$C=2\times 3.14 \times 9$

$C=56.52$

Round to nearest whole number circumference is 57 .

Therefore,The circumference of the lamp shade is 57 inches.

Answer 2

3.14 x 81. Once you do this you get your answer. I got 81 by fallowing the formula 3.14r2 (it's supposed to read pic times the radius squared) you square the radius first (multiply the radius by itself) then multiply like a regular equation of 3.14 and 81