Question

The equation sin(40o) =b/20 can be used to determine the length of line segment AC. What is the length of AC? Round to the nearest tenth.

Answer 1

For this case we have the following equation:
 sin (40o) = b / 20
 Clearing b we have:
 20 * sin (40o) = b
 Therefore, the length of the AC segment is given by:
 b = 12.9
 Answer:
 the length of AC is:
 b = 12.9