Trigonometry word problems relating to ladders

Now Playing:Ladder related word problems in trigonometry– Example 1

A ladder is leaning against an outside wall of a building. If the angle of elevation at the base of the ladder to the wall is $65^\circ$ and the ladder is 14 feet long, how far up the wall does the ladder reach?

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A 23 foot long piece of wood is leaning against the wall of a house. If the angle of elevation at the base of the wood to the wall is $75^\circ$ , how far is the wood from the base of the wall?

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