redondolena1123 redondolena1123
  • 02-04-2020
  • Mathematics
contestada

What is the exact circumference of a circle that has a radius of 10 cm? Select one: a. 10πcm b. 20πcm c. 100πcm d. 200πcm

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-04-2020

Answer:

b. 20πcm

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

   = 2* pi *10

    = 20pi

Answer Link
Wolfyy
Wolfyy Wolfyy
  • 02-04-2020

Circumference Formula: C = 2πr

C = 2π(10)

C = 20π

The correct answer is b. 20πcm

Note that if you want to solve for the exact circumference, you don't want to solve for pi since its a non-terminating decimal. If you want to round the nearest circumference multiply pi with 3.14.

Best of Luck!

Answer Link

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