The diagram below shows a sailing course for a yacht race. The route for the course is laid out with buoys that the yachts must pass. The details of the sailing course are provided in the table.Q 1.1Show that the size of the angle HAB is 90 degrees.

Show that the size of the angle HAB is 90 degrees.

wo ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30° and 45° respectively. . If the lighthouse is 100 m high, the distance between the two ships are::

A yacht is anchored 90 feet offshore from the base of a lighthouse.  The angle of elevation from the boat to the top of the lighthouse is 26 degrees.  The distance between the yacht and the top of the lighthouse is about 100 feet.  Calculate the height of the lighthouse? (Round your answer to the nearest whole number.)

he angle of depression of a shipviewed at a particular instant from thetop of a 75 m vertical cliff is 30°. Theship is sailing away from the cliff atconstant speed and 1 minute later itsangle of depression from the top ofthe cliff is 20°. De

Two angles that can be trisected with a straightedge and compass are a 90 angle and a _____ angle.A.45B.90C.9D.75SUBMITarrow_backPREVIOUS