Deriving the Triangle Area Formula
Geometry · Flashcards · Recall
GEOMETRY · FLASHCARDS
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QUESTION
What is the complementary-angle relationship for tangent and cotangent in right triangles?
QUESTION
What is the complementary-angle relationship for sine and cosine in right triangles?
QUESTION
Which inverse trig function finds
θ
\theta
θ
given opposite and adjacent?
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ANSWER
θ
=
tan
−
1
(
opposite
adjacent
)
\theta=\tan^{-1}\!\left(\frac{\text{opposite}}{\text{adjacent}}\right)
θ
=
tan
−
1
(
adjacent
opposite
)
. Arctangent finds angle from opposite and adjacent.
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