Posted by jen on .
if a wall is 34 feet, how tall must a ladder be to reach the top if at a 75 degree angle

algebra 
Jai,
let x = length of ladder
if you draw the figure, you actually form a right triangle, where the ladder is the hypotenuse, and the wall is the height. Thus, we use trigonometry.
sin (angle) = opposite / hypotenuse
sin 75 = 34 / x
x = 34 / (sin 75)
x = 34 / 0.966
x = 37.27 ft
hope this helps~ :)