To guard against a fall, a ladder should make an angle of 75o or less with the ground. What is the maximum height that a 20-foot ladder can reach safely to the nearest tenth of a foot?

in my diagram I set it up using the sin function since I want to find the height so I did (sin75=x/20) giving me 19.3

2 answers

what is 20Sin75?
I think its 19.31
sin(75)=x/20
20 x sin(75) = 19.31