MDoc101 MDoc101
  • 18-05-2019
  • Mathematics
contestada

Find the exact area of a circle having the given circumference.

3pi

A =

2.25
3
9

Respuesta :

gmany
gmany gmany
  • 18-05-2019

Answer:

A = 2.25π

Step-by-step explanation:

The formula of an area of a circle:

[tex]A=\pi r^2[/tex]

r - radius

The formula of a circumference of a circle:

[tex]C=2\pi r[/tex]

We have:

[tex]C=3\pi[/tex]

Substitute:

[tex]2\pi r=3\pi[/tex]            divide both sides by 2π

[tex]r=1.5[/tex]

Substitute:

[tex]A=\pi(1.5)^2=2.25\pi[/tex]

Answer Link
Everythang
Everythang Everythang
  • 28-10-2020

This answer is correct, I double checked it and got it right on the assignment in OW. :)

Answer Link

Otras preguntas

Hello how do you solve for x a= x-b/y
Ryker is given the graph of the function y= 1/2x^2 - 4 . He wants to find the zeros of the function but is unable to read them exactly from the graph. Find the
one way in whick Robespierre and Louis XVI of France are similar is that both
What are Radio Waves?
what's the square root of 135
A registered nurse (RN) pays 5% simple interest on a $175,000 mortgage for the construction of a house. What is the yearly interest paid on the mortgage?
What is the given equation in logarithmic form of 7^4=2,401?
one way in whick Robespierre and Louis XVI of France are similar is that both
luisa has 183 pennies. hert dad gives her 128 more write a number sentence to show many pennies luisa has now
Which of the following is the equation of a line parallel to the line y=3x+2, passing through the point (10,1)? A. 3x - y=29 B. 3x + y=29 C. -3x - y=29 D. 3x +