The area of a round mat is 64 pie square inches. what is the diameter of the mat?

Question

21-10-2016
Mathematics

contestada

The area of a round mat is 64 pie square inches. what is the diameter of the mat?

Respuesta :

Otras preguntas

Brian lives in a biome that is very similar to a grassland. Trees spot the landscape of this biome. This biome has seasonal rains and stays warm year-round. Wha

In what way did economic factors influence political developments in the annexation of Hawaii?

This english homework in russia can you helped will me ?

When is the best time to be treated for HIV

Carbon-14 if often used for radioactive dating, but it has its limitations. Uranium-238 or lead-206 are most often used to date rocks. Why would U-238 or Pb-20

What was the goal of the Marshall Plan? A. To fight the spread of Nazi Germany B. To rebuild nations destroyed in World War II C. To extend US territo

I could imagine . . . that for a few weeks people will wait to see if economic reforms come and if there is no light at the end of the tunnel they will run away

"When I was young my family moved from Africa to Asia, and then to Europe. Along the way we used stone axes to hunt for meat. We also used a new tool called "fi

what's the value of X?

k393b k393b · Answer 1 · 2016-10-21T11:22:16+02:00

k393b k393b

21-10-2016

area of a circle
area = pi r ^2
64 = 3.14 x r ^2
divide both sides by 3.14
20.38 = r^2
square root of 20.38
4.51 = r
diameter is twice the radius
4.51 + 4.51 = 9.02

Answer Link