Suppose a triangle has sides a, b, and c, and that a2 + b2 < c2. Let be the measure of the angle opposite the?

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yoyoyoyoyoyoyo

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Suppose a triangle has sides a, b, and c, and that a2 + b2 < c2. Let be the measure of the angle opposite the side of length c. Which of the following must be true? Check all that apply.

a) The triangle is not a right triangle.
b) costhetha<0
c) The triangle is a right triangle.
d) Thetha is an obtuse angle.
Please Help!! :)
 
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