A damsel is in distress and is being held captive in a tower

Last updated: 6/24/2023

A damsel is in distress and is being held captive in a tower Her knight in shining armor is on the ground below with a ladder When the knight stands 15 feet from the base of the tower and looks up at his precious damsel the angle of elevation to her window is 60 degrees How long does the ladder have to be Show all work