2 Answers

Anton Dergunov · Answer 1 · 2021-01-06T20:37:24+0000

Answer:

the first one

Explanation:

Using the sine ratio in the right triangle

sin40° =
(opposite)/(hypotenuse) =
(AC)/(AB) =
(AC)/(10)

Multiply both sides by 10

10 sin40° = AC ← first equation

Please log in or register to add a comment.