Answer:
x = 12.8 cm
Step-by-step explanation:
Using the sine ratio in the right triangle to solve for x
sin70° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{12}{x}[/tex]
Multiply both sides by x
x × sin70° = 12 ( divide both sides by sin70° )
x = [tex]\frac{12}{sin70}[/tex] ≈ 12.8
