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# Geometry Forever: 9000 Solved Problems on Cubes, Cuboids, Spheres, Cylinders, Cones, Areas, and Volumes

Geometry Forever: 9000 Solved Problems on Cubes, Cuboids, Spheres, Cylinders, Cones, Areas, and Volumes by Jim Stoltman
English | 2021 | ISBN: N/A | ASIN: B098MQLPPX | 500 pages | EPUB | 0.11 Mb

Mensuration is Very Important

We may think of geometry as something exclusively to do with shapes and drawings and constructions, but - at the elementary level - the numbers and formulae that deal with the areas of those shapes are very important. Their applications in our daily lives - whether we need to find the cost of paint needed for four walls of a living room, or we need to find the area of grass needed to cover a football field - are everywhere, and we need them irrespective of our field of work.

This book will teach you everything you need to know about the areas of commonly encountered shapes. Closed shapes like triangles, circles, squares, rectangles, and other four sided polygons (quadrilaterals) fill the pages of elementary geometry and mensuration books, but we don’t really encounter them too often after our primary and middle school days. Except when it comes to their areas. Real life is full of situations where knowing the areas of these geometric shapes comes in handy, and this is the case even if your day job has nothing at all to do with mathematics.

This book is a primer - an introductory textbook that has all that you need about the area formulae and applications of these formulae for 8 basic closed shapes. Each section starts with the formula for one of these shapes, and goes through the application of these formulae for a sample test case - for some figures, circumference and perimeter formula applications are also given. After that, I have presented you with detailed worksheets with hundreds and thousands of practice problems that help you drill these area formulae again and again, till you’re perfect.

Remember, this will work best if you take it up as a time trial; measure the amount of time you take per problem, and keep challenging yourself to shave two seconds off that time with every subsequent problem. Using a calculator is definitely allowed; the aim is that you learn how to apply the formula to calculate the area of that tricky trapezium, or that rambunctious rhombus, every single time. After you’re done with this book, Geometry will indeed be your Area of Expertise.

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