Angles of are classified in different types according to
their size. The types of angles and their corresponding size in degrees is described
below.
Right angle: 90
degrees
Acute angle: less than 90
degrees
Obtuse angle: more than 90 degrees and less than
180 degrees
Straight angle: 180
degrees.
Thus the type of each of the given angle
is:
PVQ (21 degrees): Acute
angle
RTV (96 degrees): Obtuse
angle
PVS (143 degrees): Obtuse
angle
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