Yahoo Answers: Answers and Comments for Finding the Area of a Triangle for the Area of a Segment? [Homework Help]
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From Anna
enUS
Sun, 17 Mar 2013 21:01:29 +0000
3
Yahoo Answers: Answers and Comments for Finding the Area of a Triangle for the Area of a Segment? [Homework Help]
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https://answers.yahoo.com/question/index?qid=20130317210129AAx8veW
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From FlashRubino: 1 i think the triangle is equilateral too, bec...
https://answers.yahoo.com/question/index?qid=20130317210129AAx8veW
https://answers.yahoo.com/question/index?qid=20130317210129AAx8veW
Mon, 18 Mar 2013 10:11:24 +0000
1 i think the triangle is equilateral too, because you were only given one length. I think your answer is about right.
The edge is 11, so half the base is 5.5, and the pythagorean theorem tells us that the height is 5.5*sqrt(3). So the area is 5.5^2*sqrt(3), which I get to be 52.3945. To check this, go to this site and enter the three sides of 11:
http://mste.illinois.edu/dildine/tcd_files/program17.htm
For your next triangle, I am going to ASSUME that it's a right triangle with two 45 degree angles, each facing the 25 yd side. This is half a square, cut on the diagonal, right? So the area would be 25^2 divided by two, or 312.5 sq yd
the last one we KNOW is a right triangle, and since the two legs of the angle are equal, we know that it also has two 45 degree angles, so the area is just 1/2.
I am uneasy about #2. It is correct, but it seems that you weren't given all the usual information.
Good luck.