Question

i need help! >,<

Answer 1

Hello, Shino,
Take into account the fact that the distance AE is 14 inches. If that is true, approx. what is the length of each AB? BC? CD? DE?

Note that we're talking about the areas of circular rings of different inside and outside radii.

Supposing (just supposing) that the outside radius of the red ring were 3 units and that the inside radius were 2 units. Then the area of the red ring would be

\[\pi*(3 units)^2 - \pi*(2 units)^2\]
or
\[\pi(3^2-2^2).\]

Please think about these hints. Can you put them to use in finding the actual area of the red ring? of the blue ring? of the difference in areas between the red and blue rings?