Figures
Looks like a dot, labeled with a letter
3 sided shape
Triangle
Triangle with three acute angles
Acute triangle
Angle that is less than 90 degrees
Acute
Two angles make up a 90 degree angle. One angle is 30 degrees. What is the measurement of the second angle?
60 degrees
A straight figure that begins and ends at specific points
Line segment
4 sided shape
Quadrilateral
Triangle with one obtuse angle
Obtuse triangle
Angle that is greater than 90 degrees
Obtuse
Two angles make up a 180 degree angle. One angle is 110 degrees. What is the measurement of the second angle?
70 degrees
A straight figure that continues for infinity in both directions
Line
5 sided shape
Pentagon
Triangle with three equal sides
Equilateral
Angle that is exactly 90 degrees
Right angle
Angle A and Angle B are complementary. Angle A is 56 degrees. What is the measurement of Angle B?
34 degrees
A straight figure that begins at a point, but goes on for infinity in the other direction
Ray
6 sided shape
Hexagon
Triangle with two equal sides
Isosceles
Angles that add up to 90 degrees
Complementary
Angle A and Angle B are supplementary angles. Angle A is 23 degrees. What is the measurement of Angle B?
157 degrees
The point at the corner of an angle
Vertex
10 sided shape
Decagon
Triangle with zero equal sides
Scalene
Angles that add up to 180 degrees
Supplementary
Three angles make up a circle. The first angle is 30 degrees. The second angle is 170 degrees. What is the measurement of the third angle?
160 degrees