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Mathematics 8 Online
OpenStudy (gabbyalicorn):

A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions? A. 376.8 cm B. 94.2 cm C. 47.1 cm D. 188.4 cm

OpenStudy (gabbyalicorn):

c

OpenStudy (anonymous):

Find the circumference and multiplay by 4

OpenStudy (gabbyalicorn):

D

OpenStudy (anonymous):

No, let's do it C=2π.radius Then 4C Try it

OpenStudy (gabbyalicorn):

100.48

OpenStudy (anonymous):

C=2x3.14x15 How much is it?

OpenStudy (gabbyalicorn):

300.

OpenStudy (anonymous):

C=94.2 Now take C and multiply by 4

OpenStudy (gabbyalicorn):

376.8

OpenStudy (anonymous):

Yep, well done

OpenStudy (gabbyalicorn):

:D yay!

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