Question

Find the measure of angle A to the nearest tenth
(Show work if you can pleasee)

Answer 1

19.5°

Explanation:

to get the answer to this, you need to apply trigonometry

SOH CAH TOA

• label the sides of the triangle

AB = hypotenuse

BC = opposite

AC = adjacent

• read the question to see what you want to work out (in this case the angle A)

• look at the sides that you have and correspond this to what equation to use

we have the hypotenuse and the opposite so we use the equation SOH

• the equation to work out the angle

sin⁻¹ (opp/hyp)

= sin⁻¹ (
`(6)/(18)`)

= 19.47122....

= 19.5° (to the nearest tenth)