The law of sines

1
The law of sines

• A 123ft support wire for a transmitting tower
  makes an angle of 610 with the ground. This wire
  is to be replaced by a new wire whose angle with
  the ground is 460. How long will the new wire be?

2
The law of sines

• The captain of a ship sighted a reef located so
  that the angle between the line of sight to the
  reef and the ships course was 200. After sailing
  8km, this angle was observed to be 700. At that
  point, how far was the ship from the reef?

3
The law of sines

• A college football pennant is in the shape of an
  isosceles triangle. The base is 16 in. long. The
  sides meet at an angle of 350. How long are the
  sides?