Question

Kelly drew a circle with a diameter of 8cm Paige drew a circle with a radius of 3cm approximately how much larger is the area of kylies circle than the area of paiges circle?

Answer 1

15.7

Explanation:

d = 2r

d = 8 thus r = 4

area (kelly) = 4 x4 x
`\pi` = 16
`\pi`

area (paige) = 3 x 3 x
`\pi` = 9
`\pi`

difference = 16
`\pi` - 9
`\pi` = 5
`\pi` = 15.7