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1 vote
What is the cosine of angle L

A. 2
B. 1/2
C. 3 square rooted
D. 3 square rooted/2​

What is the cosine of angle L A. 2 B. 1/2 C. 3 square rooted D. 3 square rooted/2​-example-1
User Tobiaswk
by
7.4k points

1 Answer

3 votes

Answer: option D.

Explanation:

Remember the cosine identity:


cos\alpha=(adjacent)/(hypotenuse)

Given the right triangle shown in the image, you can identify that the adjacent side and the hypotenuse for the angle L of this triangle are:


adjacent=√(3)\\hypotenuse=2

Now you can substitute values into
cos\alpha=(adjacent)/(hypotenuse)

Therefore you get:


cos(L)=(√(3))/(2)

This matches with the option D.

User RGuggisberg
by
7.5k points