Obtuse Angles
Name this triangle based on it's sides.
Equilateral
acute angle
Polygons with four sides and four vertices
quadrilateral
Quadrilaterals that have all equal sides, 4 right angles and 2 pairs of parallel lines
squares
Angles that are smaller than 90 degrees
Acute Angles
Name this triangle based on it's sides.
Isosceles
obtuse angle
Polygons with three sides and three vertices
triangle
Quadrilaterals that have 4 right angles and 2 sets of parallel lines
rectangle
Angles that are equal to 90 degrees
90 degree angle
Name this triangle based on it's angles.
Right triangle
Which angle has exactly 90 degrees.
right angle
Polygons with five sides and five vertices
pentagon
Quadrilateral that has 1 pair of parallel lines
trapezoid
Which angle is represented by the corner of a sheet of paper?
right angle
What type of triangle has 1 angle that is greater than 90 degrees?
Obtuse triangle
An angle that is 172 degrees is an _________ angle.
obtuse
Polygons with six sides and six vertices
hexagon
A quadrilateral with 2 sets of parallel lines
parallelogram
An angle that is 57 degrees would be classified as what type of angle?
acute angle
Name this triangle based on it's angles.
acute triangle
An angle that is 89 degrees is a ___________ angle.
acute
Polygons with eight sides and eight vertices
octagon
A quadrilateral with 4 congruent sides and 2 pairs of parallel lines
rhombus