Question

A4 Find length AC idk how to do this someone help me

Answer 1

Answer:

AC ≈ 16.8 cm ( to 1 dec. place )

Step-by-step explanation:

Using the sine ratio in the right triangle

sin71° = $\frac{opposite}{hypotenuse}$ = $\frac{AB}{AC}$ = $\frac{15.9}{AC}$

Multiply both sides by AC

AC × sin71° = 15.9 ( divide both sides by sin71° )

AC = $\frac{15.9}{sin71}$ ≈ 16.8 cm

Answer 2

Answer:

16.8 cm

Step-by-step explanation:

Sin (theta)=opposite/HYPOTENUSE

Where theta=71 and opposite=15.9

Putting in the above formula

Sin 71=15.9/AC

AC=15.9/sin71

AC=15.9/0.945

AC=16.8 cm