Question

The diameter of the larger circle is 20.4 cm.
The diameter of the smaller circle is 10.8 cm.

What is the approximate area of the shaded region?



A.
326.7 cm²

B.
289.4 cm²

C.
235.1 cm²

D.
72.3 cm²s

Answer 1

http://static.k12.com/calms_media/media/1419000_1419500/1419371/1/c4e26a94203d8ae90d1065d72cde797bf3ba1a4c/MS_PA_130922_171142.jpg

Answer 2

find the area of the larger circle.
find the area of the smaller circle...

then, subtract the two areas..

Answer 3

Area of circle = \[\pi r^2\] So subtract the areas

Answer 4

note: the given are the diameters so find first the radius :)

Answer 5

The radius for the shades circle would be 10.2
The radius for the unshaded circle would be 5.4

Answer 6

subtract the larger circles area from smalller one`s . u will get the answer

Answer 7

area of larger circle - area of smaller circle

= \[\pi(10.2)^2 - \pi(5.4)^2\]
= \[104.04\pi - 29.16\pi \]
= \[78.88\pi \]
= 235.1 ...