I went with (c, d) on this one am i correct?

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.
(Points : 3)
cos 0

The triangle is a right triangle.

(The triangle is not a right triangle.)

(is an acute angle.)

Question

I went with (c, d) on this one am i correct? 

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.
(Points : 3)
        cos > 0

        The triangle is a right triangle.

        (The triangle is not a right triangle.)

          (is an acute angle.)

anonymous · Answer

@abb0t

jim_thompson5910 · Answer

" cos > 0" is not clear, can you elaborate?

anonymous · Answer

cos > 0 is one of the four i have to choose from

anonymous · Answer

it is cos theta <0

jim_thompson5910 · Answer

oh cos(theta) > 0 ? or cos(theta) < 0 ?

perl · Answer

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