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.
Complementary Angles. Two angles are complementary angles if their degree measurements add up to 90Â°. That is, if we attach both angles and fit them side by side (by putting the vertices and one side on top of each other), they will form a right angle.nother special pair of angles is called supplementary angles. One angle is said to be the supplement of the other if the sum of their degree measurements is 180Â°. In other words, if we put the angles side by side, the result would be a straight line.