Question

Trigonometry anyone? Treat urself haha

Answer 1

Answer:

AC = 4.34 cm

Step-by-step explanation:

You have an angle and its opposite side. That allows you to establish a ratio in the law of sines, so use the law of sines.

$\dfrac{a}{\sin A} = \dfrac{b}{\sin B} = \dfrac{c}{\sin B}$

$\dfrac{8.15~cm}{\sin 110^\circ} = \dfrac{AC}{\sin 30^\circ}$

$AC = \dfrac{8.15~cm \times \sin 30^\circ}{\sin 110^\circ}$

$AC = 4.34~cm$