Question

Use a trigonometric ratio to find the value of x. Round your answer to the nearest tenth

Answer 1

x ≈ 8.1 units

Explanation:

Using the tangent ratio in the right triangle

tan72° =
`(opposite)/(adjacent)` =
`(25)/(x)` ( multiply both sides by x )

x × tan72° = 25 ( divide both sides by tan72° )

x =
`(25)/(tan72)` ≈ 8.1 ( to the nearest tenth )