SOLUTION: Find the area of the shaded portion of the figure. (You're supposed to do something with the semi-circles in the figure I think?)
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-> SOLUTION: Find the area of the shaded portion of the figure. (You're supposed to do something with the semi-circles in the figure I think?)
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Question 132630: Find the area of the shaded portion of the figure. (You're supposed to do something with the semi-circles in the figure I think?)
Sorry it's a little sloppy, but PLEASE HELP! Answer by mathispowerful(115) (Show Source):
You can put this solution on YOUR website! From your gram, it looks like
the shaded small half circle on the right has
the same size as the small blank half circle on the left.
That means, the whole shaded area is actually half of
the big circle.
The area of a circle is
half of it is
What is r then?
The diameter of the small circle is the radius of big circle,
so r=8
Now plug in r, we get
Area =
= 100.5
The answer is 100.5
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