Shelby B.

asked • 01/13/15

a triangle is placed in a semicircle with a radius of 7yd

A triangle is placed in a semicircle with a radius of 7 yd. Find the area of the shaded region. Use the value of 3.14 for pi. And dont round your answer.

Matt H.

Hi Shelby--
 
We either need to see a picture of this and/or get more information about the measurements of the triangle.
 
In general, the area outside of the triangle will be the area of the semi-circle minus the area of the triangle itself, or:
 
1/2*49*3.14 - 1/2 b*h of the triangle.
 
That first part, which is the area of the semi-circle, works out to 76.93
 
So based on the info we have, it becomes 76.93 - 1/2*b*h of the triangle = area outside of triangle.
 
Is that what you mean?
 
Hope this helps!
 
Matt in NY
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01/13/15

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