Answer:
i think its 20
Explanation:
x = 12.8 cm
Using the sine ratio in the right triangle to solve for x
sin70° = =
Multiply both sides by x
x × sin70° = 12 ( divide both sides by sin70° )
x = ≈ 12.8
6.0m questions
7.8m answers
= 
≈ 12.8