courtneypatterson courtneypatterson
  • 04-05-2015
  • Mathematics
contestada

Suppose the circumference of a circle is 2 pi what is the area?

Respuesta :

iGreen
iGreen iGreen
  • 04-05-2015
C = 2 * pi * r

Plug in what we know:

2pi = 2 * pi * r

Divide 2 pi to both sides:

r = 1

(Remember, anything divided by itself is equal to 1)

A = pi * r^2

Plug in what we know:

A = pi * 1^2

A = pi * 1

A = 1 pi

So the area is '1 pi' or just 'pi'.
Answer Link

Otras preguntas

Why did the British surrender to the Americans in the Battle of Yorktown in 1781?
helppppppppp?!!!:)???
Evaluate the numerical expression. −8.1 – 3.5 ÷ (−0.5)
How did the belief in an a connection between magic and heresy affect the roles of men and women during the reformation
Help!! I’ll mark as brainest
3 examples Allied powers
Read the passage from Sugar Changed the World. Since sugar had to pass through many hands before it reached the fairs, it was expensive and hard to get. King H
what is the project manager?
Who played the role of Jack Sparrow in the movie, Pirates of the Caribbean?Wesley SnipesJohnny DeppSylvester StallionMel Gibson
Which of these medications would be classified as a Category X substance that is not to be used during pregnancy? A Lorazepam (Ativan) B Alprazolam (Xanax) C