February 7, 2016 Grade 9, Math, Quadrilaterals

Definition A parallelogram is a quadrilateral with opposite sides parallel and have opposite angles equal. The number of square units it takes to completely fill a parallelogram. Therefore the area of the parallelogram is Base × Altitude. From,Parallelogram Area Videos describes about the geometry of parallelogram and its area. For more details about this watch Parallelogram Area Videos. […]

February 6, 2016 Grade 9, Math, Quadrilaterals

Definition A rectangle is a four-sided flat shape where every angle is a right angle (90°). It have opposite sides are parallel and of equal length.A square is a special type of rectangle. Area Of Rectangles Video explains the geometry of rectangle and its area, watch the video for more details. Rectangle A rectangle is a a quadrilateral where […]

February 6, 2016 Grade 9, Math, Quadrilaterals

Definition Square is a plane figure with four equal straight sides and four right angles. The area of a square can be found by multiplying the base times itself. For more details watch Area Of Square Video. Square A square is a flat shape, in one plane, defined by four points at the four corners. A square […]

February 6, 2016 Areas of Parallelograms and Triangles, Grade 9, Math

Definition Triangle is a plane figure with three straight sides and three angles. To find the area of a triangle, multiply the base by the height, and then divide by 2. Area And Perimeter Of A Triangle Video explains about the triangle figure deeply and the mention about the area and perimeter, for more details watch the […]

February 6, 2016 Areas of Parallelograms and Triangles, Grade 9, Math

Definition Triangle is a plane figure with three straight sides and three angles. In geometry, an altitude of a triangle is a line segment through a vertex and perpendicular to a line containing the base . This line containing the opposite side is called the extended base of the altitude. To know more details about this […]

Definition A circle is the set of all points in a plane that are the same distance from a given point, called the center.The distance around a circle is called its circumference.The area of a circle is the number of square units inside that circle. Area And Circumference Of A Circle Video explains about the circle and […]

February 6, 2016 Constructions, Grade 9, Math

Definition Rectangle is a four-sided shape that is made up of two pairs of parallel lines and that has four right angles and one of its shape in which one pair of lines is longer than the other pair. Construction Of A Rectangle Video explains how to construct a rectangle and its practical examples, watch it. Rectangles […]

February 6, 2016 Constructions, Grade 9, Math

Definition A circle is the set of points in a plane that are a given distance, called the radius, from a given point in the plane, called the center. A segment from the center to a point on the circle is called a radius. A Segment Of A Circle On A Line Segment Video describes about the construction and the segments, […]

February 6, 2016 Constructions, Grade 9, Math

Definition A triangle is a 3-sided polygon sometimes called the trigon. Every triangle has three sides and three angles, some of which may be the same. By constructing a triangle outside in a circle or circle is placing inside of the triangle is called circumscribed triangle about a circle. Circumscribed Triangle About A Circle Video explains the […]

February 6, 2016 Constructions, Grade 9, Math

Definition Square is a plane figure with four equal straight sides and four right angles. The circumscribed square is defined as the circle circumscribes the square. Or the circumscribed square is defined as the square is outside in the circle or circle is inside in the square. Circumscribed Square About A Circle Video explains about its construction […]

February 6, 2016 Constructions, Grade 9, Math

Definition An equilateral triangle is a triangle with all three sides of equal length. The Circumscribed Equilateral Triangle About A Circle Video describes about the construction of a circumcircle or circumscribed of an equilateral triangle about a circle, watch it. Circumscribed Equilateral Triangle About A Circle An equilateral triangle is a triangle with all three sides […]

February 6, 2016 Constructions, Grade 9, Math

Definition In geometry, a pentagon is any five-sided polygon or 5-gon. A regular pentagon is a pentagon which of all sides have equal length and all angles have equal measurement. The circumscribed regular pentagon is defined as the circle circumscribes the regular pentagon . Or the circumscribed regular pentagon is defined as the regular pentagon is outside […]

Definition A circle is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The radius of a circle is the distance from the center […]

Definition A chord of the circle is a line joining any two points on the circumference of a circle . It is a straight line segment whose endpoints both lie on the circle. A secant line, or just secant, is the infinite line extension of a chord. Generally, a chord is a line segment joining two […]

February 6, 2016 Constructions, Grade 9, Math

Definition The circumcircle of a triangle is the circle that passes through all three vertices of the triangle. The construction first establishes the circumcenter and then draws the circle. Circumcenter of a triangle is the point where the perpendicular bisectors of the sides intersect. From, Circumcircle of a triangle Video describes how to construct the triangle […]

Definition An arc is a part of the circumference . The angle subtended by an arc (or chord) on any point on the remaining part of the circle is called an inscribed angle. The angle subtended at the center of a circle by an arc is double the angle subtended by it on any point […]

Definition The two lines which are non parallel always intersect, i.e., they pass through the common point. If three or more lines pass through the same point then they are called concurrent lines and the common point is called the point of concurrency or concurrent point. A median of a triangle is a segment joining […]

Definition The two lines which are non parallel always intersect, i.e., they pass through the common point. If three or more lines pass through the same point then they are called concurrent lines and the common point is called the point of concurrency or concurrent point. These definitions and the properties are described on Point […]

February 5, 2016 Grade 9, Lines and Angles, Math

Definition Angles sum property of triangle is defined as the sum of the measures of the interior angles of a triangle is 180 degree. The Angle Sum Theorem gives an important result about triangles, which is used in many algebra and geometry problems. Angle Sum Property Of A Triangle Video explains about the theorem , that is […]

Definition about congruent of triangle The SAS stands for “side, angle, side” and they means that if we have two triangles where we know two sides and the included angle are equal. If the two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are called congruent. This is the congruence […]

February 5, 2016 Grade 9, Math, Number Systems

Definition The absolute value of a real number a is denoted by |a| and it is the distance from a to the origin 0 on the number line. The absolute value is always positive. Absolute Value Of A Real Numbers Videos represents about the real numbers and its of absolute values, for more details watch the […]