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10 Cards in this Set
- Front
- Back
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Sin x° =
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Opposite/Hypoteneuse
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Cos x°=
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Adjacent/Hypoteneuse
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Tan x°=
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Opposite/Adjacent
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Pythagoras Theorem is
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a + b = c
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To find a length of a right-angled triangle if you already have 2 other lengths, use...
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Pythagoras Theorem
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To find a length of a right-angled triangle if you already have the angle and 1 length, use...
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Trigonometry
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The area of a triangle using trigonometry |
=abSinC/2
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The Sine Rule |
a = b = c
SinA SinB SinC SinA = SinB = SinC a b c |
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The Cosine Rule |
a = b + c -2bcCosA
CosA=b + c - a 2bc |
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Pythagoras Theorem in 3D |
x + y + z = a
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