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In this video I define,

angle of depression,angle of elevation,angle bisector, and right angle

Angles of Depression are angles below the horizontal, imagine looking from ground level into a deep canyon.

The angle that an observer would lower his or her line of sight below a horizontal line in order to see an object is the angle of depression.

The angle of depression involves 4 items.

Observers eyes,the horizontal ,line of sight, and the object.

Angles of Elevation

Angles of elevation are angles above the horizontal, imagine looking up from ground level toward the top of a mountain.

The angle that an observer would raise his or her line of sight above a horizontal line in order to see an object is the angle of elevation

Angle of elevation involves 4 things, the object, the horizontal, line of sight, and the observers eyes.

Angle Bisector

An angle bisector is a line or ray that divides an angle in half

The bisector divides the larger angle into two smaller equal angles

The angle bisector of a polygon will intersect an interior angle

A right angle is an angle that measures exactly 90 degrees

Examples of right angles include the corners of squares, the angle in a right triangle, and perpendicular lines create right angles.

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Tagged under: definitions,math definitions,angle,angle depression,angle elevation,angle bisector, angle

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