A 13-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 10 fe
et from the base of the building. How high up the wall does the ladder reach?
1 answer:
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I assume you mean, that an angle and two sides are known.
A formula that can be used for irregular triangles is the cosine rule.
'b' and 'c' must be sides that are beside the angle 'A' (angle opposite 'a').
A formula that can be used for irregular triangles is the cosine rule.
'b' and 'c' must be sides that are beside the angle 'A' (angle opposite 'a').