SOLUTION: If a wall height is 3ft. 6in. and the base is 6ft. 6in. What is the diagonal?(Hypotenuse) This is a Pythagorean theorem ? Do you have to convert this to inches first then back to f

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Question 324944: If a wall height is 3ft. 6in. and the base is 6ft. 6in. What is the diagonal?(Hypotenuse) This is a Pythagorean theorem ? Do you have to convert this to inches first then back to feet/inch?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Yes convert to either all feet or all inches.
3'6"=36+6=42 inches
6'6"=72+6=78 inches
A%5E2%2BB%5E2=H%5E2
42%5E2%2B78%5E2=H%5E2
H%5E2=1764%2B6084
H%5E2=7848
H=88.588
88 inches=7'4"
Round up 4.588" to 5"
H=7'5"