Classify the Angles
Obtuse Angles

acute angle
Polygons with four sides and four vertices
quadrilateral
Angles that are smaller than 90 degrees
Acute Angles

obtuse angle
Polygons with three sides and three vertices
triangle
Angles that are equal to 90 degrees
90 degree angle
right angle
Polygons with five sides and five vertices
pentagon
Angles greater than 180
Reflex
An angle that is 182 degrees is an _________ angle.
obtuse
Polygons with six sides and six vertices
hexagon
Angles that are equal to 180 degrees
straight angles
an angle that is 89 degrees is a ___________ angle.
acute
Polygons with eight sides and eight vertices
octogon