LOOKING AT TRIGONOMETRY A
COMMON SENSE APPROACH
Let's
take
a
common
sense
approach
looking
at
right
angle
triangles
and
how
trigonometry
is
used.
Every
book
you
learned
from
probably
dealt
with
terms
like
side
adjacent,
side
opposite,
etc.
etc...
Well
I
am
going
to
use
easy
terms
like
longer
leg,
larger
angle
and
so
on.
Sorry
you
will
still
have
to
know
what
the
hypotenuse
is.
Remember that it is the longest side of a right angle triangle.
NOTICE
THESE
THINGS
:
The
term
larger
angle
means
larger
than
the
smaller
not
larger
than
the
90
degree
angle.
The
90
degree
angle
is
always
the
largest
angle
of
the
three.
The
larger
angle
and
the
smaller
angle
added
together
always
equal
90
degrees.
The
Legs
(Shorter
and
Longer)
are
always
next
to
the
90
degree
angle.
The
Hypotenuse
is
on
the
opposite
side
of
the
90
degree
angle
and
next
to
the
smaller
and
larger
angle.
Notice
how
the
shorter
leg
is
opposite
the
smaller
angle
(Makes
sense
doesn't
it?),
and
the
longer
leg
is
opposite
the
larger
angle
.
One
more
thing,
if
the
smaller
or
the
larger
angle
is
equal
to
45
degrees
then
we
cannot
call
them
larger
or
smaller
because
they
will
be
the
same
size.
We
will
have
an
isosceles
right
angle
triangle.
No
wonder
the
tangent
of
45
degrees
is equal to one (the legs will be a one to one ratio to each other).
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