A 10 foot ladder is to be placed against the side of a building. The base of the ladder must be placed at an angle of 72degree with the level ground for a secure footing. Find to the nearest inch, how far of the ladder should be from the side of the building and how far up the side of the building the ladder will reach

Answer 1

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The distance from the side of the building to the base of the ladder should be 8.7 inches. The ladder will reach up the side of the building 9 feet.