Question

I need help please......

Answer 1

A clocks minute hand makes one revolution (360 degrees) for every hour. That means we can find the area as normal using the formula:


`\pi r^2`, where r is the radius.

pi*14^2
=pi*196
=196pi

:)

Answer 2

Ah so the length of the minute hand is the radius.

Given that the raduis is 14mm, the area of the watch face can be found with A=
`\pi r^2`

Therefore
A=
`\pi r^2`
A=
`\pi 14^2`
A=
`196 \pi`

The watch face has an area of
`196 \pi`