Work out the length of AC.
Give your answer to 3 significant figures.
A
29 cm
23°
ch
B
![Work out the length of AC Give your answer to 3 significant figures A 29 cm 23 ch B class=](https://us-static.z-dn.net/files/d20/50026b576b1cc0e410f0063ff0036d9a.png)
Answer:
AC ≈ 11.3 cm
Step-by-step explanation:
Using the sine ratio in the right triangle
sin23° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{AC}{29}[/tex] ( multiply both sides by 29 )
29 × sin23° = AC , then
AC ≈ 11.3 cm ( to 3 significant figures )