Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (anonymous):

use the illustration below to calculate the circumfrence of the circle. A. 75.4 cm B. 24 cm C. 37.7 cm D. 452.4 cm

OpenStudy (anonymous):

|dw:1364960090111:dw|

OpenStudy (anonymous):

what is the equation for circumference?

OpenStudy (anonymous):

their is no equation

OpenStudy (anonymous):

The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle.

OpenStudy (anonymous):

If a circle has a diameter of 4, its circumference is 3.14*4=12.56

OpenStudy (anonymous):

If you know the radius, the diameter is twice as large.

OpenStudy (anonymous):

You have enough info @katlin95 to work it out on your own for once :)

OpenStudy (anonymous):

its B

OpenStudy (anonymous):

is that the right answer guys?

OpenStudy (anonymous):

Circumference = 2 • π • radius = π • diameter Circle Area = π • r² = ¼ • π • d²

OpenStudy (anonymous):

yea its B

OpenStudy (anonymous):

nevermind its C

OpenStudy (anonymous):

A. 75.4 cm

OpenStudy (anonymous):

A

OpenStudy (anonymous):

they give you 12 cm aka the RADIUS!

OpenStudy (anonymous):

Circumference = 2 • π • radius = 2 • π • 12 = 75.39 = 75.4

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!