Question

Solving a right triangle using trig.


Please help

Answer 1

Answer: About 13.05 units.

Explanation:

To solve, we will use a trigonometry function. We are given an angle (40 degrees), the adjacent side (10), and the hypotenuse (?). For this, we will use cosine to create an equation.

cos(40) =
`(adjacent)/(hypotenuse )`

cos(40) =
`(10)/(?)`

?cos(40) = 10

? =
`(10)/(cos(40))`

? ≈ 13.05