Question

Doug needs a ladder that is at least 12 meters long. he has a ladder that is 30 feet long. about how many feet too short is this ladder?

Answer 1

30 feet is 9.144 meters, so the ladder is 2.856m too short.

Answer 2

convert to inches
1 meter=39 inches
12 times 39=468 inches

1feet=12 inches
12 times 30=360 inches

468-360=108 inches

108 inches=how many feet
1foot=12 inches
1/12foot=1 inch
108 times 1/12foot=9

answer is 9 feet short