answersLogoWhite

0

You misunderstand. 'The area of the diameter'. The diameter is a STRAIGHT LINE, it is NOT an area.

The question should read ' How do you find the area of a circle, knowing only the diameter?'

To answer the question

Remember the equation ;-

A = pi*r^2

Where

'A' is the area

'pi' ~ 3.14 (A constant)

'r' is the radius.

Now the radius is one half the diameter ; (r = d/2) or (d = 2r)

We can algebraically substitute

A = pi *(d/2)^2

So as an example , is the diameter is 20

Then

A = 3.14 ( 20/2)^2 (Remember ; do what's inside the brackets first)

A = 3.14 * 10^2

A = 3.14 * 100

A = 314.00

User Avatar

lenpollock

Lvl 16
2y ago

Still curious? Ask our experts.

Chat with our AI personalities

ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
ReneRene
Change my mind. I dare you.
Chat with Rene
More answers
Area of a circle = pi times radius squared
Diameter of a circle = 2 times radius
User Avatar

Wiki User

10y ago
User Avatar

Add your answer:

Earn +20 pts
Q: How do you find the area of diameter of a circle?
Write your answer...
Submit
Still have questions?
magnify glass
imp