Mathematic

Nonagon is one of the types of polygonal shapes. The nonagon is said to be a 9 sided polygon. It is also called Enneagon. The…

Octagon is a polygon which has 8 sides is known as an octagon. It is a two-dimensional closed shape. Octagons must have straight sides that…

Heptagon is a type of polygon that is composed of 7 lines bounded together. It is a two-dimensional figure. Therefore, a heptagon has seven sides…

Hexagon is a six-sided polygon (a flat shape with straight sides). It is a polygon of six angles and six sides. The total of the…

A pentagon is a 5-sided Polygon. A regular pentagon has five lines of reflectional symmetry, and rotational symmetry of order 5 (through 72°, 144°, 216°…

A quadrilateral is a closed figure with four straight sides. Each point where two sides touch is called a vertex. Simple quadrilaterals are either convex or…

A triangle has three sides and three angles. The three angles always add to 180° Every triangle has three sides and three angles, several of…

Polygons: Definition and Types Polygons are plane figures with at least three straight sides and angles, and typically five or more. Triangles, quadrilaterals, pentagons, and…

Complementary angles: Two Angles are Complementary when they add up to 90 degrees (a Right Angle). They don’t have to be next to each other,…

Complementary angles: Complementary angles are two angles that have a sum of 90°. Two angles whose measures add to 90 degrees. Angle 1 and angle…

Acute angle: An angle whose measure is less than 90 degrees. An angle whose measure is between 0° and 90°. The following is an acute…

Parallel lines: When two lines not at all meet in space or on a plane no substance how long we extend them, we say that…