Question

one circle has a radius of 8 m, and a second circle has a radius of 10 m. What is the difference in area of the two circles? Use pi = 3.14 as an approximate

Answer 1

Area of a circle = pir^2
small circle = pi(8)^2=64pi
large circle=pi(10)^2=100pi
now subtract them and use pi=3.14

Answer 2

\[ pir^2 \pi(8)^2=64\pi \\pi(10)^2=100\pi\pi=3.14\]

Answer 3

hey can u rewrite that using the "Equation" box? XD

Answer 4

ok :)small circle \[= \pi(8)^2 = 64\pi \]
large \[\ = 10^2pi=100\pi\]
now subract them

Answer 5

okay thanks!

Answer 6

do i subbtract 100(pi) - 64(pi)?

Answer 7

\[100(\pi) - 64(\pi)\]

Answer 8

i think my answer is 36(pi)