Question

Help Needed!

Find the area of each of the following shaded parts. Assume all arcs are circular. Leave all answers in terms of pi.

Answer 1

the area of the large semi-circle is

\[A = 1/2 \pi r^2\]

the 2 small semi-circles has the same radius r/2 and combined have the area of a whole circle

\[A=\pi (r/2)^2 = 1/4 \pi r^2\]

Answer 2

Are of each part is:
\[1/2(1/2\pi r ^{2})\]

Answer 3

So would the answer be \[A= 1/4\pi r ^{2}\] ?

Answer 4

yes

Answer 5

the green shaded area is A = 1/4 pi r^2

that appears to be the only area you need to find

Answer 6

yes, just the shaded portion. Thank you both for helping me!