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.
Here, $\angle$ MOP is supplementary angle because, $\angle$ MON + $\angle$ NOP = 180 degrees. Vertical Angles: When two lines intersect each other, angle pairs are formed. In this type of angles, the angles in the opposite direction is said to be vertical angle.ere, $\angle$ MOP is supplementary angle because, $\angle$ MON + $\angle$ NOP = 180 degrees. Vertical Angles: When two lines intersect each other, angle pairs are formed. In this type of angles, the angles in the opposite direction is said to be vertical angle.