1 Fasteners can hold 2-thick stacks of paperwork securely inside the folder for instant flip-through. 2  Classification folders help you subdivide and identify various sections of your documentation. 3  Dividers are made of 17-pt. 4  kraft for amazing durability.
Complementary angles are two angles with a sum of 90Âº. Supplementary angles are two angles with a sum of 180Âº. Vertical angles are two angles whose sides form two pairs of opposite rays. We can think of these as opposite angles formed by an X. The Lesson:
The complementary angles a and b (b is the complement of a, and a is the complement of b). A reflex angle and its conjugate are explementary angles, and their sum is a complete angle. The angles a and b are supplementary angles.