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Mathematics – Different Types of Angles

Quadrilateral-A quadrilateral is a four-sided polygon with four angles.

Parallelogram-A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal).

Rectangle- a rectangle is a quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral. Square-a plane figure with four equal straight sides and four right angles.

Rhombus- is a simple (non-self-intersecting) quadrilateral whose four sides all have the same length. Trapezoid-A trapezoid is a quadrilateral with two sides parallel. Trapezium- used to describe a geometric shape, has two contradictory meanings.

Acute angle-The acute angle is the small angle which is less ,. Right angle-, a right angle is an angle that bisects the angle formed by two adjacent parts of a straight line. Coplanar lines-are lines that lie on the same plane.

Parallel lines- are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel Intersecting lines-This shared point is called the point of intersection. Although we’re dealing specifically with lines in this lesson, line segments also intersect where they share a common point.

Perpendicular- is the relationship between two lines which meet at a right angle (90 degrees). Transversal- is a line that passes through two lines in the same plane at two distinct points.

Corresponding angles– the angles in matching corners.

Alternate Interior Angles-The pairs of angles on opposite sides of the transversal but inside the two lines.

Alternate Exterior Angles-The pairs of angles on opposite sides of the transversal but outside the two lines.

Same Side Interior Angles– are two angles that are on the same side of the transversal and on the interior of the two lines.

Hypotenuse- is the longest side of a right-angled triangle, the side opposite of the right angle. Zero property- the zero-product property states that the product of two nonzero elements is nonzero.

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