Will Medal!
Suppose a triangle has sides a, b, and c, and the angle opposite of the side of length a is obtuse. What must be true?
A. b^2 + c^2 < a^2
B. a^2 + b^2 < c^2
C. b^2 + c^2 > a^2
D. a^2 + c^2 < b^2
***My Answer: A***
Please Help!

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- anonymous

- schrodinger

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- anonymous

I am doubting myself... but I think I will go with A unless someone says otherwise. Help would be much appreciated!

- zeesbrat3

Well, it depends if you are looking at angles or side lengths

- anonymous

I think that because we know that the angel is obtuse, we are looking at the side lengths?

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## More answers

- zeesbrat3

If you are talking about side lengths, then you should know that the sum of the legs of a triangle are always greater than the hypotenuse

- anonymous

Oh ok! |dw:1434933309907:dw|
So from what you have told me make it choice A?

- anonymous

*longest side length

- zeesbrat3

If I remember my geometry correctly, two legs are greater than the hypotenuse. However, I can't remember if that concept applies to all the lengths. So, with the little knowledge I gave you, if it even helped, I wish you luck :)

- anonymous

Ok thank you! :) I'll tell you what the answer is when I hit submit very soon

- anonymous

Ok yay A was correct!

- zeesbrat3

Good job!

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