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The Unit Circle What is cos 180°? a. 0 b. 1 c. -1 d. 1/2 Please select the best answer from the choices provided
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3 votes
The Unit Circle

What is cos 180°?

a. 0
b. 1
c. -1
d. 1/2

Please select the best answer from the choices provided

User BojanG
by
4.8k points

2 Answers

4 votes

Answer:

-1

Explanation:

cos = opp/hyp

At 180º

adj = -1

hyp = 1

Cos 180 = -1/1 = -1

User Last
by
5.3k points
5 votes

Answer:

C. -1

Explanation:

I calculated it logically

User Alejandro Mezcua
by
4.4k points
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