1
Day 08
Lecture 07
for 2/01/2011
Generalizing Trigonometry
Intro.
Last time we learned about the
Right Triangle definitions
of the
6
trigonometric functions
.
Two triangles are
similar
or _______________ if they have the
______ angles but ________________ side lengths.
In the event two triangles are
similar
, matching sides are
________________ in length.
This means that the length of a side
on one triangle is just a
_____________ of the matching
side length on the other.
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Trig. functions and Similar Triangles
Similar Triangles
have the
same trig. Function values
for the
corresponding angles
.
To demonstrate this, calculate the sine, cosine, and tangent of the
following triangles.
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Trig. functions and Similar Triangles, II
Repeat the last procedure on the following two triangles, which
are again
similar
, as all three sides on one have been divided
by
________
.
When the hypotenuse of a triangle is _____, the height of the
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 Spring '11
 Gentimis
 Algebra, Trigonometry, Angles, Unit Circle

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