Question

A baker uses a coffee mug with a diameter of 8 cm, to cut out circular cookies from a big sheet of cookie dough. What is the area A of each cookie? Give your answer in terms of pi. A=___cm^2

Answer 1

Area in in terms of pi is 16 π

Explanation:

The cookies ar circular so, we have to use the formula of circle area

Area= π r²

where

r is radius of the cookie

We have the diameter that is the double of the radio.

So, radio will be 8/2=4

Area= π r²

Area= π 4²

Area= 16 π

Answer 2

A =
`16\pi`
`cm^(2)`

Explanation:

∵ The diameter of the mug is 8 cm and using to cut out circular cookies

∴ The diameter of each circular cookie is 8 cm

∴ Its radius = 8 ÷ 2 = 4

∵ Area of the circle =
`\pi r^(2)`

∴ Area =
`\pi 4^(2)=16\pi cm^(2)`