Question

Which is the formula to calculate area for a circle with diameter sixty-eight miles?

two pi times thirty-four

pi times thirty-four squared

two pi times sixty-eight

pi times sixty-eight squared

Answer 1

@tkhunny

Answer 2

@ganeshie8

Answer 3

@ARMYRANGERS

Answer 4

have you any idea here...?

Answer 5

use the formula...


A=πd^2/4

Answer 6

how?

Answer 7

what is diameter here... ?

Answer 8

@Ail.A please respond

Answer 9

ok see here...

A=πd^2/4
A=π(68)^2/4

Answer 10

ok...

Answer 11

is this clear now...? @Ail.A

Answer 12

what does ^ mean

Answer 13

mean you got the solution... ?

Answer 14

no

Answer 15

Horrible question. There should not be a formula to calculate the area of a circle with a diameter of 68 miles.

What is the formula for the area of a circle, given its radius?

\(Area = \pi r^{2}\)

What is the formula for the area of a circle, given its diameter?

\(Area = \pi \left(\dfrac{d}{2}\right)^{2} = \dfrac{\pi}{4}d^{2}\)

What is the formula for the area of a circle, given its Circumference?

\(Area = \pi \left(\dfrac{\dfrac{C}{\pi}}{2}\right)^{2} = \pi\left(\dfrac{C}{2\pi}\right)^{2} = \dfrac{C^{2}}{4\pi}\)

Now, if you give me a specific diameter or radius, we are in business and we can just substitute to provided values. This is what a formula does. If you have a "formula" to solves a single problem, something is seriously wrong.

What is the formula for the area of a circle, given its area?!