A boat is heading towards a lighthouse, where Serenity is watching from a vertical distance of 141 feet above the water. Serenit
y measures an angle of depression to the boat at point A to be 9°. At some later time, Serenity takes another measurement and finds the angle of depression to the boat ( now at point B ) to be 61°. Find the distance from point A to point B. Round your answer to the nearest foot if necessary.
Well I'm still trying to solve the first question so I'll tell you the other answers the answer for the second question is : and for the third question :
