zoejouline zoejouline
  • 08-02-2019
  • Mathematics
contestada

Find the radius of a circle with an area of 27 pie cm

Find the radius of a circle with an area of 27 pie cm class=

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 08-02-2019

Area of a circle is = PI x r^2

Area = 27 PI

This means the radius would be the square root of 27:


√27 = 3√3

The answer is F.

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 08-02-2019

Answer:

F 3 sqrt(3)

Step-by-step explanation:

The area of a circle is given by

A = pi*r^2

We know the area is 27*pi

27 *pi = pi*r^2

Divide each side by pi

27 *pi/pi = pi/pi*r^2

27 = r^2

Take the square root of each side

sqrt(27) = sqrt(r^2)

sqrt(9*3) = r

sqrt(9) sqrt(3) = r

3sqrt(3) =r

Answer Link

Otras preguntas

If you were asked to solve a system of linear equations using the substitution method, in what form would one or both of the equations start as that would make
may somebody help me please.
Who were the two groups that fought in the America civil war
the surface area of this rectangular prism is 28 square centimeters. What is the value of p?
Nadia bought 5 tickets to attend a spaghetti super fundraiser at her. school.The equation 5x equals 32.50 can be used to find x, the cost of each ticket in dol
Mental disorders are recognized by _____.
Parallelogram abcd is divided into two triangles along diagonal ac. if you know the area of the parallelogram, how do you find the area of triangle abc
If g(x)=3/4x+2,find g(-12)
express in trigonometric form PLEASE... -6+6 sqrt. 3i
what is center and spread of distribution? def ps