Question

The distance around a circular dance hall room is 135 feet. Which of the following is closest to the longest distance across the dance hall?

Answer 1

CD =
`(135)/(\pi )`

Explanation:

distance around a circular = CIRCUMFERENCE LENGTH =
`2 * \pi * r`

CL =
`2 * \pi * r`

135 =
`2 * \pi * r`

longest distance = circumference diameter (CD) =
`2 * r`

135 =
`2 * \pi * r`

135 = CD *
`\pi`

CD =
`(135)/(\pi )`