Question

Alyssa is rolling her hula hoop on the playground the radius of a hula hoop is 35cm what is the distance the hula hoop rolls in 4 full rotations round your answer to the nearest centimeter

Answer 1

The distance traveled by the hula hoop in 4 rotations is equivalent to four times the circumference of the hula hoop.

Use the following formula for the circumference:

C = 2·π·r

where π = 3.14 and r = 35 cm is the radius. Replace these parameters inot he formula for C:

C = 2(3.14)(35 cm)

C = 219.8 cm

next, remind the distance traveled for 4 rotations in four times C:

distance traveled = 4·C = 4(219.8 cm) = 879.2 cm