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 consecutive interior angles theorem states that when the two lines are parallel, then the consecutive interior angles are supplementary to each other. Supplementary means that the two angles add up to 180 degrees. The theorem tells me that angles 3 and 5 will add up to 180 degrees. Angles 4 and 6 will also add up to 180 degrees because they make another pair of consecutive interior angles.