Exterior Angle Theorem For a triangle The exterior angle d equals the angles b plus c. (d = b + c)The…

Regular polygon is a polygon that has all angles equal and all sides equal. So, regular polygon has a =…

Angles of Elevation Angle of elevation is the angle from the horizontal upward to an object. An observer’s line of…

Definition Translation means Moving without rotating, resizing or anything else, just moving. To Translate a shape Every point of the…

An Acute Angle is less than 90° More Examples of Acute angles Which Angle? Remember to look carefully at which…

Definition of Parallelogram Parallelogram is a two-dimensional shape that has parallel sides each other. The parallel sides are equals in…

An Obtuse Angle is more than 90° but less than 180° Examples More Examples of obtuse angles Which is Obtuse…

Definitions When two lines are crossed by another line (Transversal), Consecutive Interior Angles are the pairs of angles on one side…

Square is one of common things in daily life. There are many square things. They are chess board, clock, crackers,…

1. Johny walked in a garden start from point A. Then he walk to the west 14 meters to point…