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Roman Numerals

Roman Numerals   What is Roman Numerals? Math section in a competitive exam is the most important part of the exam. It doesn’t mean that other topics are not so important. But only math portion can leads you to a good score. A good score comes with practice and practice.

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Perimeter Formulas

Perimeter Formulas The perimeter of any polygon is the sum of the lengths of all the sides. Note: “ab” means “a” multiplied by “b”. “a2” means “a squared”, which is the same as “a” times “a”. Be careful!! Units count. Use the same units for all measurements.  square = 4a

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Surface Area

Surface Area Formulas In general, the surface area is the sum of all the areas of all the shapes that cover the surface of the object. Note: “ab” means “a” multiplied by “b”. “a2” means “a squared”, which is the same as “a” times “a”. Be careful!! Units count. Use

Formulas

Volume Formulas

Volume Formulas Note: “ab” means “a” multiplied by “b”. “a2” means “a squared”, which is the same as “a” times “a”. “b3” means “b cubed”, which is the same as “b” times “b” times “b”. Be careful!! Units count. Use the same units for all measurements.  cube = a 3

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Area Formula

Area Formulas Note: “ab” means “a” multiplied by “b”. “a2” means “a squared”, which is the same as “a” times “a”. Be careful!! Units count. Use the same units for all measurements. square = a 2 rectangle = ab parallelogram = bh trapezoid = h/2 (b1 + b2) circle =