Viewing in Doors & Windows. Many people use a screwdriver to remove a hinge pin when taking off a door. They simply place the tip up under the head of the pin and then tap on the end with a hammer.
Complementary angles are two angles whose measures add up to 90 degrees. You can think of them as two puzzle pieces that form one 90 degree angle when they are put together. When talking about complementary angles, it's important to remember that they're always in a pair.
THEOREM: Vertical angles are congruent. Complementary Angles are 2 angles the sum of whose measures is 90Â°. Complementary angles can be placed so that they form perpendicular lines, but do not have to be in this configuration. THEOREM: Complements of the same angle, or congruent angles, are congruent.omplementary Angles are 2 angles the sum of whose measures is 90Â°. Complementary angles can be placed so that they form perpendicular lines, but do not have to be in this configuration. THEOREM: Complements of the same angle, or congruent angles, are congruent.