Mathematics Class 9

Rectilinear Figures

A plane figure bounded by straight lines is called a rectilinear figure. A closed figure made up of 3 or more sides is called a polygon. If the measure of each interior angle of a polygon is less than 1800, then it is called a convex polygon. If the measure of at least one interior …

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The logarithm of any number to a given base is equal to the index to which the base should be raised to get the given number. The logarithm of a product is equal to the sum of the logarithms of its factors. The logarithm of a fraction is equal to the difference between the logarithm …

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When a polynomial is a product of two or more polynomials, each of the later polynomials is called its factors. The method of expressing a given polynomial as a product of two or more polynomials is called factorization. If a given polynomial contains a common factor which may be either a constant or a variable, …

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