Polar Equation of a Circle Polar form of the equation of the circle is almost similar to the parametric form of the equation of the circle. We usually write polar form of the equation of circle whose center is origin. Let’s take a point P(rcosϴ, rsinϴ) on the boundary of the circle, where r is […]

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Equation of a Circle when the Center of Circle Coincides with the Origin In this tutorial we will learn, equation of a circle when the center of circle coincides with the origin with examples. Equation of a circle with center at (h, k) and radius equal to r, is (x – h)² + (y – […]

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Right Angle Triangle – Definition – Formula – Properties What is a Right Angle Triangle? A right angle triangle is a type of triangle. A right angle triangle plays an important role in trigonometry. A triangle in which one of the interior angle is 90º or a right angle is a right triangle. Right Triangle […]

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Volume of Right Circular Cone                          In figure A is called vertex, AO is height,  OC is radius, and AC is slant height of cone. The height, radius, and slant height of the cone are usually denoted by h, r and l respectively. Volume of Right Circular Cone V = 1/3𝜋r2h […]

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 Congruent Figures In our daily life we see many congruent objects like as,  (i) Two 2 Rupees, 5 Rupees, or 10 Rupees coins. (ii) Two text books of mathematics of same class.  Two figures or objects are called congruent, when one object cover the other completely and exactly. This means that two books or coins […]

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Geometry practice on circle Here, we will practiced and discussed the questions on circle. Fill in the blanks. (1) The common point of a tangent and the circle is called …….. (2) A circle may have …….. parallel tangents. (3) A tangent to a circle intersects it in …….. point. (4) A line intersecting a […]

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