\
a). \ \
\The angle
=
.
is quadrant I.
is quadrant II.
is quadrant III.
is quadrant IV.
The angle is
.
Just compare the fraction with the
to the fractions
The angle
, where 1/4 is between 0 and 1/2.
So it is in quadrant I
\The angle is in Quadrant I.
\
b). \ \
\\
The angle
=
.
\
is quadrant I.
is quadrant II.
is quadrant III.
is quadrant IV.
\
The angle is
.
\
Just compare the fraction with the
to the fractions
The angle
, where 5/4 is between 1 and 3/2.
So it is in quadrant III. \ \
\The angle is in Quadrant III.
\\
\
\ \