Question

What’s the exact answer in simplest form?

Answer 1

`(5\pi )/(2)` inches

Explanation:

The arc length is calculated as

arc = circumference of circle × fraction of circle

= 2πr ×
`(45)/(360)`

= 2π × 10 ×
`(1)/(8)`

= 20π ×
`(1)/(8)` =
`(20\pi )/(8)` =
`(5\pi )/(2)` inches