The answer would be a height o 18 inches. how you figure that is by taking the total cubic inches and divide by the base number which is 42 inches. 756 divided by 42 is 18. and to check your answer multiply. 18 times 42 equals 756.
Using Pythagoras Theorem, (b is the length of the ladder from the ground) 11x11=6x6+(b^2) 121-36=(b^2) 85=(b^2) b= 9.219544457292887 b is approximately 9.2
