Polygons and Angles
Types of Angles
Name that Polygon
Types of Triangles
100
Sum of interior angles in a quadrilateral
360
100
acute angle
100
Polygons with four equal sides and vertices
Square
100
Triangles that have all sides equal
equilateral
200
Sum of interior angles in a pentagon
540
200
obtuse angle
200
Polygons with three sides and three vertices
triangle
200
Triangles that have NO equal sides
scalene triangle
300
Sum of interior angles in 7-sided polygon
900
300
90 degree angle
right angle
300
Polygons with five sides and five vertices
pentagon
300
Triangles that have two equal sides
isosceles
400
One angle in a decagon
144
400
An angle that is 182 degrees is an _________ angle.
obtuse
400
Polygons with six sides and six vertices
hexagon
400
Triangles that have three angles less than 90 degrees
acute triangle
500
One angle in a 26-sided polygon.
166.15
500
an angle that is 89 degrees is a ___________ angle.
acute
500
Polygons with eight sides and eight vertices
octogon
500
Triangles that have one angle greater than 90 degrees
obtuse