Question

Based on the given triangle, the cosine of the 30 degree angle is:

P.S.
It is not 1/3 (third option)

Answer 1

`(√(3) )/(2)`

Explanation:

Remember SOHCAHTOA

The cosine of an angle in a right triangle is the adjacent sides length divided by the hypotenuses length

In this case, for the angle 30 degrees, the adjacent length is
`√(3)` and the hypotenuse's length is 2

So, the cosine of the 30 degree angle is the first option:

`(√(3) )/(2)`