I think it's a3D unless u tell me what u mean by finding S12
Answer:
490849.9
Step-by-step explanation:
Answer:
x =
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin30° = , then
sin30° = = = ( cross- multiply )
2x = 13 ( divide both sides by 2 )
x =