You purchase a $100,000, 20 year life insurance policy. If the rate was $6.75 per $1000, and you needed to pay monthly at 10% of the annual rate, what would your monthly payment be?

in this right triangle, we are given an angle and the adjacent side of the angle. now we have to find for the length of the opposite side. the formula that relates these 3 variables is the tan function which states that:

tan θ = opposite side / adjacent side

where opposite side is the height of the sail

substituting the values into the formula:
tan (40) = height / 2

rearranging in terms of height:

height = 2 * tan (40)

since tan θ = 1 / cot θ, therefore:

height = 2 / cot (40)

answer:

d. 2 divided by cot 40 degrees