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# Geometry cheat sheet !

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Intern
Joined: 17 Jan 2018
Posts: 3

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10 Oct 2018, 01:12
5

Geometry

Area & Perimeter

Square: Area: $$length^2$$ || Perimeter: 4*length

Parallelogram: Area: base * height || Perimeter: 2*(base + height)

Circle: Area: $$\pi$$$$r^2$$ | Circumference of a circle: 2$$\pi$$r [where Pi ($$\pi$$) = $$\frac{22}{7}$$]

Triangle: Area: $$\frac{length}{2*breadth}$$

Pythagoras Theorem (for right-angled triangles): $$base^2$$+ $$height^2$$ =$$hypotenuse^2$$

Volume formulas

Cube: $$(length)^3$$

Rectangular prism: length * breadth * height

Cylinder: 2*$$\pi$$*r*h

Cone: $$\frac{A}{3}$$ Where A = $$\pi$$* $$r^2$$ * h

Pyramid:$$\frac{base length X base width X height}{3}$$

Sphere: $$\frac{4}{3}$$* $$\pi$$* $$r^3$$

* Line passing through the center of the circle is DIAMETER

* If a triangle is inscribed in a circle such that one side of that triangle is a diameter of the circle, then the angle of the triangle that is opposite the diameter is a Right angle
Senior Manager
Joined: 22 Feb 2018
Posts: 420
Re: Geometry cheat sheet !  [#permalink]

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10 Oct 2018, 01:44
Check this below link for GMAT quant cheat sheet pdf
https://blog.targettestprep.com/gmat-equation-guide/
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Joined: 30 Jan 2016
Posts: 1158

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16 Oct 2018, 08:52
1
All the formulas needed fot GMAT can also be found here:

TRIANGLES
POLYGONS
CIRCLES
COORDINATE GEOMETRY
3-D Geometries
ALL YOU NEED FOR QUANT ! ! !
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Non progredi est regredi
Geometry cheat sheet !   [#permalink] 16 Oct 2018, 08:52
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