vertical, perpendicular, plumb mean being at right angles to a base line. vertical suggests a line or direction rising straight upward toward a zenith. Definition of vertical adjective from the Oxford Advanced Learner's Dictionary.
(of a line, pole, etc.) going straight up or down from a level surface or from top to bottom in a picture, etc. The cliff was almost vertical. There was a vertical drop to the ocean. At its core, vertical direction describes any movement or orientation that goes up or down.
vertical angles worksheet, Imagine a straight line that points directly towards the sky or directly into the ground. The word vertical is derived from the late Latin verticalis, which is from the same root as vertex, meaning 'highest point' or more literally the 'turning point' such as in a whirlpool. Horizontal lines go left and right. Vertical lines go up and down. Parallel lines are a fixed distance apart and will never meet, no matter how long they are extended.
vertical angles worksheet, A vertical video is shot in portrait mode (phone upright). It can show anything — a person’s face (which is roughly rectangular and wider than tall, technically), a landscape (which is sideways in the frame, but still called “vertical video” because the phone orientation is vertical). The term "vertical" refers to something upright, perpendicular to a horizontal plane, or relating to hierarchical structures. It is a widely used term in various fields, from geometry to business. Vertical describes something that rises straight up from a horizontal line or plane. A telephone pole or a tree can usually be described as vertical in relation to the ground.