Question

mary races her bicycle for 128m. a wheel of her bicycle 32 times as the bycicle travels that distance. what is the diameter of the wheel?

Answer 1

The perimeter of a circle is:
\[2 \pi r\]
You're "laying down" 32 perimeters to equal 128 meters.

Answer 2

so 2 time 3.14 times 32?

Answer 3

Yes, that will equal 128 meters.

Answer 4

i got 201

Answer 5

How?

Answer 6

\[32(2 \pi r) = 128\]
\[2 \pi r = 4\]