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Angles > Classifying Angles < you are here
Angles may be classified according to size
Obtuse angle-Measures
between 90 and 180 degrees
Right angle
measures
Accute angle-Measures
between 0 and 90 and
degrees
straight angle-Measures
between 0 and 90 and
degrees
reflex angle-Measures
greater than 180º and
less than 360º.
An angle is two rays with a common endpoint, called
the vertex. You can classify angles according to their
size: acute, obtuse, or right.
end piont
vertex
Geometry
Example