Question

a firefighter need to reach the 9th floor of a building which is 120 feet high how far should his letter be extended if the fire truck contain the base of the ladder is propped 160 feet away from the building​

Answer 1

200

Explanation:

this is a 3-4-5 triangle so since 120/3 and 160/4 = 40 which are the two sides the ladder is 5*40=200