Zip-line ninja needs to get down, luckily he always carries rope with him
he needs to know if his rope is long enough to make it to the ground where his sidekick will tie to the ground at an angle of 18 degrees. He knows the building is 115 ft tall. How much rope does Zip-line Ninja need?
He currently has 375 feet of rope. He first sets up the equation: sin(18)=115/x and isolates the variable making it x=115/sin(18). He calculates it and gets 372.14 ft. He has enough rope!