354
β
a
b
c
α
L29
Solving Right Triangles
2
2
2
a
b
c
+
=
90
α
β
+
=
°
Example
: If
3
a
=
and
5
b
=
, find
,
c
α
, and
β
. Round
your answers to one decimal place.
355
Example
: If
2
a
=
and
20
β
=
°
, find
b
,
c
, and
α
. Round
your answers to one decimal place.
The acute angle measured from horizontal to line-of-sight
observation of the object is called the
angle of elevation
or
angle of depression

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