Perry wants to use a 12-foot ladder to reach a shelf that is 11 feet above the ground. How far from the wall should Perry place the base of the ladder so that the top of the ladder reaches the shelf? Round to the nearest tenth.​

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Answer:

I believe 1 foot away

Step-by-step explanation:

because if you take 1 away from 12 you get 11 and that is how tall the shelf is.