Types of Triangle A triangle is a closed figure in a plane consisting of three segments called sides. Any two sides intersect in exactly one point called a vertex. Watch Types of Triangle Videos to learn more. A triangle is named using the capital letters assigned to its vertices in a clockwise or counterclockwise direction. […]

Triangle A triangle is a closed figure in a plane consisting of three segments called sides. Any two sides intersect in exactly one point called a vertex. Watch Triangle Videos to learn more. A triangle is named using the capital letters assigned to its vertices in a clockwise or counterclockwise direction. For example, the triangle below […]

March 2, 2016 Grade 9, Lines and Angles, Math

Angle Made By A Transversal A line which intersects two or more given coplanar lines in distinct points is called a transversal of the given lines. The angle present in between that intersecting lines are angle made by a transversal. They have several properties are exists.To learn more about this watch Angle Made By A […]

RHS Congruence Theorem RHS (Right Angle-Hypotenuse-Side) Congruence theorem states that two right triangles are congruent if the hypotenuse and one side of one triangle are respectively equal to the hypotenuse and the corresponding side of the other triangle.Watch RHS Congruence Theorem Video to learn more about the theorem. Two triangles triangle are congruent if the hypotenuse and one side […]

SSS Congruence Theorem SSS Postulate (Side-Side-Side) If three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent.Watch SSS Congruence Theorem Video to learn more about the theorem. Side Side Side postulate states that if three sides of one triangle are congruent to three sides of another triangle, then these […]

Definition An isosceles triangle is a triangle that has two sides of equal length. Sometimes it is specified as having two and only two sides of equal length, and sometimes as having at least two sides of equal length, the latter version thus including the equilateral triangle as a special case. They have many properties are exist.Watch Properties of Isosceles Triangle […]

March 2, 2016 Grade 9, Introduction to Euclids Geometry, Math

Description Euclid , a Greek Mathematician , is considered as father of geometry.The geometry of plane figures is known as “Euclidean Geometry”. The whole of Euclidean Geometry is based on five postulates known as Euclid’s postulates.To learn more about it watch Euclids Postulates Video. Euclid’s Postulates A straight line segment can be drawn joining any […]

March 2, 2016 Grade 9, Lines and Angles, Math

Definition Points are the sharp ended and a line is defined as something that extends infinitely in either direction but has no width and is one dimensional while a plane extends infinitely in two dimensions.To learn more watch Points and Lines Videos. Points and Lines A point is an exact position or location on a plane surface. A line has no […]

March 2, 2016 Grade 9, Lines and Angles, Math

Definition Two angles are called a pair of vertically opposite angles, if their arms form form two pairs of opposite rays.Watch Vertically Opposite Angles Video to learn more about it. Vertically Opposite Angles Vertical Angles are the angles opposite each other when two lines cross. They are always equal.Both pairs of vertical angles (four angles […]

March 2, 2016 Grade 9, Lines and Angles, Math

Definition Two adjacent angles are said to be form a linear pair of angles, if their non-common arms are two opposite rays. Linear pair axiom of theorems are if a ray stands on a line , then the sum of two adjacent angles so formed is 180 degree. And the second theorem is if the […]

Definition An angle is formed by two rays with a common initial point. The common initial point is called the vertex. The rays forming an angle are called arms or sides of an angle. Angle can be divided into different types on the basis of their measures. The different types of an angle on the […]

March 2, 2016 Grade 9, Lines and Angles, Math

Intersecting, Non Intersecting And Concurrent Lines If two lines having a common point are said to intersect are called intersecting lines. If two lines are said to be non-intersecting if they do not have any common point. If three or more lines in a plane are concurrent if all of them pass through the same […]

Definition Triangle is a plane closed figure with three straight sides and three angles. If two sides of a triangle are unequal, the greater side has greater angle opposite to it.Watch Greater Side Has Greater Angle Videos to learn more. Greater Side Has Greater Angle Theorem: A greater side of a triangle is opposite a greater […]

March 2, 2016 Grade 9, Linear Equations in Two Variables, Math

Definition A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. Linear equations can have one or more variables. If a linear equation containing one unknown variable , is called linear equation in one variable.Watch Linear Equation in One Variable Video […]

March 2, 2016 Grade 9, Herons Formula, Math

Definition A formula can be defined as an equation that states a rule or a fact. Or in other words, A formula is a group of mathematical symbols that express a relationship or that are used to solve a problem, or a way to make something.Watch Formula Video to learn more. Formula A formula is a group of […]

March 2, 2016 Grade 9, Linear Equations in Two Variables, Math

Definition A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. Linear equations can have one or more variables. If the linear equation contains two variables like x,y or a,b etc.. are called linear equation in two variables. The graphical solution […]

March 2, 2016 Grade 9, Linear Equations in Two Variables, Math

Definition A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. Linear equations can have one or more variables. If the linear equation contains two variables like x,y or a,b etc.. are called linear equation in two variables.Watch Linear Equation In […]

March 2, 2016 Grade 9, Math, Polynomials

Definition Polynomial is a type of algebraic expression with many terms having variables and coefficients. The polynomial remainder theorem states that the remainder of the division of a polynomial by a linear polynomial is equal to. In particular, is a divisor of if and only if. Factor theorem is a special case of the polynomial remainder theorem. The factor theorem states […]

February 18, 2016 Grade 9, Linear Equations in Two Variables, Math

Definition A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. Linear equations can have one or more variables. We can used to solve the linear equations by algebraic methods . Sometimes, graphical method does not give an accurate answer. We […]

February 18, 2016 Grade 9, Lines and Angles, Math

Definition of an angle An angle is formed by two rays with a common initial point. The common initial point is called the vertex. The rays forming an angle are called arms or sides of an angle. The definition of an angle and its different properties of forms are describing in Forming Of An Angle […]

Definition In a circle the angle subtended by the two arcs are equal , then these two arcs are called congruent. According to the theorem , if two chords are equal in a equal circle, they cut of equal arcs.For more detailed study, watch Congruent Arcs Subtends Equal Angles Video. Congruent arcs of a circle subtend […]

Definition The angle subtended by an arc of a circle at the centre is double the angle subtended by it at any point on the remaining part of the circle. For more detailed study watch Angle Subtended By An Arc Video. Angle Subtended By An Arc Draw a circle with centre O. Let PAQ be an […]

Definition In a circle , the angle in a semi circle is the right angle. We can prove it by different examples or constructions. Angle In A Semi Circle Video explains the construction of an angle which is formed in a semi circle. Angle In A Semi Circle The section of a semi circle from a […]

Definition The line segment joining two points subtends equal angles at two other points lying on the same side of the line containing the segment, the four points are con-cyclic , i.e. lie on the same circle. For more detailed study watch A Line Segment Subtends Two Angles Videos. A Line Segment Subtends Two Angles Points […]