#trig???

12 messages · Page 1 of 1 (latest)

jolly vigil
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can someone give me a short explanation on how to do trig on triangles that don't have a right angle? currently in my school holiday and im too lazy to study...

white thistleBOT
light apex
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ok

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there are two laws

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cosine in sine

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you should checkout the organic chemistry teacher or eddie woo if you want an explanation

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The sine rule works when you know either two angles and one side (AAS) or two sides and a non-included angle (SSA)

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a/Sin A = b/Sin B = c/ Sin C

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The cosine rule is for when you know two sides and the included angle (SAS) or all three sides (SSS).

light apex
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ur right

light apex
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No solution: If the side opposite the given angle is too short to reach the other side (like a swing that can't reach the base).
One solution: If the side opposite the angle is exactly as long as the height of the triangle or longer than the other known side.
Two solutions: If the opposite side is long enough to form two different triangles but not longer than the adjacent side.