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Mathematics 15 Online
Ybnprophet:

A unicycle travels 50 feet. If the radius of the tire is 24 INCHES, how many times does the tire rotate? A) about 8 times B) about 3 times C) about 4 times D) about 12 times

lowkey:

When a tire rotates, the distance it goes is the circumference of itself.

lowkey:

r=24 inches, which is equal to two feet

Shadow:

\[C = 2 \pi r\]

lowkey:

∴d=48 inches, or 4 feet

lowkey:

∴C=2πr as he stated=25.13 feet

lowkey:

50/25.13

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