Acute, Right, Obtuse
Isosceles, Scalene, Equilateral
Angles
Naming Triangles
Parallel and Perpendicular
100
Acute
Angles less than 90 degrees
100
Isoceles
Triangle with 2 of the same sides
100
Name the angle: 
Acute
100
Name the triangle:
Acute Scalene
100
Parallel or perpendicular
Parallel
200
Right
One 90 degree angle
200
Scalene
Triangle with no sides that are the same size
200
Name the angle:
Obtuse
200
Name the triangle:
Acute Isosceles
200
Parallel or perpendicular
Perpendicular
300
Straight
Angle that measures 180 degrees
300
Equilateral
Triangle that all three sides are the same size
300
Name the angle:
Right
300
Name the triangle:
Acute Equilateral
300
Lines that never intersect
Parallel
400
Obtuse
Measures more than 90 degrees but less than 180 degrees
400
Isosceles
Triangle that has 2 sides that are the same size
400
Name the angle:
Acute
400
Name the triangle:
Right Isosceles
400
Lines that intersect to form a right angle
Perpendicular
500
Acute
Less than 90 degrees but more than 0 degrees
500
Scalene
Triangle that has no sides that are the same size
500
Name the angle:
Obtuse
500
Name the triangle:
Obtuse Scalene
500
Parallel or perpendicular
Both