Question

A boat is heading towards a lighthouse, where Serenity is watching from a vertical distance of 141 feet above the water. Serenity 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.



Please help me

All the pts I have ​

Answer 1

Step-by-step explanation:

the distance A-> B :

(141/tan 9°) - (141/ tan 61°)

= (141/ 0.16) - (141/ 1.80)

= 881.25 - 78.33

= 803 ft