a ladder is 12 feet laid on the side of the barn. its base from the ground of the barn is 3 feet. how tall is the ladder? rounded to the nearest tenths? like 9.2 or 10.8 or 11.4 something of that naturee please?
a^2 + b^2 = c^2
12^2 + 3^2 = c^2
144 + 9 = c^2
153 = c^2
12.37 = c