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Mathematics 14 Online
OpenStudy (anonymous):

help please!! 1 medal and fan:) If AB = 18, BC = 10, and CA = 13, list the angles of triangle ABC in order from smallest to largest. A.

OpenStudy (anonymous):

thank you

Directrix (directrix):

What is the answer?

OpenStudy (anonymous):

c

Directrix (directrix):

I don't think so.

Directrix (directrix):

The smallest angle is opposite the smallest side. Whoops, I think I messed up. I had B as the smallest angle but it is opposite side AC which has length 13 which is not the shortest length. 10 is. Just a sec.

Directrix (directrix):

Okay, my bad. I agree with this: C. <A,<B,<C

OpenStudy (anonymous):

It is cloudy outside. What is the first step of indirectly proving this statement? a Assume if it is cloudy, then you are outside. b Assume it is not cloudy outside. c Assume it is sunny outside. d Assume if it is cloudy, then you are inside. im not sure about this one

Directrix (directrix):

The first step of an indirect proof is to assume the negation of what is stated. Negation means to put a NOT in the given statement.

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