Polynomials – Definition – Example A ‘Polynomial’ is a mathematical expression consisting of variables (indeterminates), coefficients and the operations of addition, subtraction, multiplication and non-negative integer exponents of variables. Example: A Polynomial of a single variable x is x2 + 3x A Polynomial of a variable y is […]
Read More →Quadrilateral – Definition – Properties There are kinds of quadrilaterals, based on the sides and angles. 1. Parallelogram 2 Rectangle 3. Square 4. Rhombus 5. Trapezium 6. kite 1. Parallelogram A Parallelogram is a quadrilateral, whose both pairs of opposite sides are parallel and equal in length. In above […]
Read More →Square – Properties – Formula Here we will learn, about some geometrical properties of a square. In below figure ABCD is a square. Properties of a square 1. All four sides of a square are equal or congruent. 1. All four sides of a square are equal or congruent. AB = BC = CD = DA 2. All […]
Read More →Value of Trigonometric Ratios For 0º, 30º, 45º, 60º and 90º.
Read More →Common Geometry Symbols Geometry Symbol Symbol Symbol Name (1) ∠ Angle (2) ∟ Right angle (3) ∡ […]
Read More →Measure an angle with Protractor What is a protractor Shape of a protractor The shape of a protractor is as a semi circle. Protractor’s upper side is curved and lower side is a straight line.The curved edge is divided into 180 equal parts, and each part is equal to a degree. Most protractors have two […]
Read More →Angle – Angle – Similarity If two angles of a triangle are respectively equal to two angles of another triangle, then the two triangles are similar. Given: Two △ABC and △PQR such that ∠B = ∠Q, and ∠C = ∠R To prove: △ABC ~ △PQR Proof: In △ABC, ∠A + ∠B +∠C = 1800….(1) by angle sum property In △PQR∠P + […]
Read More →Prove that the angle in a semicircle is a right angle or Angle subtended by a diameter/Semicircle on any circle on any point of circle is 90º. Given: A circle O with centre O. BC is the diameter of circle subtending ∠BAC at […]
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