3 years ago

How do you find the area of a circle? Isn't it π and something?

Mathematics

1 answer:

viva [34]3 years ago

7 0

Hi there!

You are partially correct on the π symbol, but there's more!

The formula for finding the area of a circle is:

A = π r².

A stands for area, π stands for pi, and r stands for radius. The ² is there because the radius is half as big as the diameter of a circle.

Hope this helps! :D

And remember, you can message me whenever you need to on anything you may need help with!

You might be interested in

creativ13 [48]

If the diameter is 12 inches, the radius is 6 inches, because the radius is half the diameter.

Given the formula

$A=\pi r^2$

we have

$A=36\pi$

When you fold the circle in half, the resulting figure has half the area.

So, you start with a circle with area $36\pi$

You fold it once and you have a semicircle with area $18\pi$

You fold it twice and you have a quarter circle with area $9\pi$

7 0

2 years ago

Data was collected from a simple random sample of 200 cell phone users age 18 or older in the United States. Each user was categ

frutty [35]

Answer:

Step-by-step explanation:

i took it

6 0

3 years ago

Read 2 more answers

How to find the volume of a quarter-sphere?

Ganezh [65]

As the word suggests, a quarter-sphere is a quarter of a sphere, and thus the volume of a quarter-sphere is a quarter of the volume of the sphere.

The volume of a sphere is computed as

$\dfrac{4}{3} \pi r^3$

So, the volume of a quarter-sphere is

$\dfrac{1}{4}\cdot \dfrac{4}{3} \pi r^3 = \dfrac{1}{3} \pi r^3$

7 0

2 years ago

PLEASE HEEEEEEEEEEEEEEEEEELP

inna [77]

I’m pretty sure it’s 3 and a 2

8 0

2 years ago

The teacher buys a pack of notebooks for give his students the ratio of the gold notebooks to red notebooks is represented in th

katovenus [111]

Answer-

~The answer is 40 gold notebooks~

(Thank me later~)

7 0

3 years ago

Read 2 more answers