3 years ago

How would you find the circumference of a circle if you know the area of the circle?

Mathematics

1 answer:

Llana [10]3 years ago

5 0

Answer:

You first work out the radius, as below:

Area = pi x radius^2

=> radius = sqrt(Area/pi)

Then, you find out circumference C.

=> C = 2 x pi x radius

Hope this helps!

You might be interested in

Prove that if -5(x+4)=70, then x=-18

kvv77 [185]

Input negative 18 into x and distribute. on both sides of the equal sign you should get 70=70

6 0

2 years ago

Translate the following sentence into an equation using n for the unknown number. Then solve for n. when 15 is decreased by thre

saw5 [17]

Answer:

n=-2,A

Step-by-step explanation:

15-3n=21

-3n=21-15

-3n=6

n=6/-3

=-2

5 0

2 years ago

3. Solve the inequality –2(z + 5) + 20 > 6.

12345 [234]

$\boxed{-2\left(z+5\right)+20>6\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:z$

Solution:

Given inequality is:

$-2(z+5)+20>6$

We have to solve the given inequality

$-2\left(z+5\right)+20>6\\\\\mathrm{Subtract\:}20\mathrm{\:from\:both\:sides}\\\\-2\left(z+5\right)+20-20>6-20\\\\\mathrm{Simplify}\\\\-2\left(z+5\right)>-14$

$Multiply\ both\ sides\ by\ -1\ \left(reverse\:the\:inequality\right)$

Whenever we multiply or divide an inequality by a negative number, we must flip the inequality sign

$\left(-2\left(z+5\right)\right)\left(-1\right)$

Thus the solution to inequality is:

$-2\left(z+5\right)+20>6\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:z$

4 0

2 years ago

What is the value of the digit 6 in 102,653

liq [111]

That would be the hundred thosand place

6 0

2 years ago

Read 2 more answers

Tina is planning to paint a wood box she is using small paint cans that cover 20 square feet of surface area how many cans will

valkas [14]

Answer:

How much is the ouside of the box?

7 0

2 years ago