Geometry Formulas Flashcards by Erin boeger

Q

Area for Rectangle

A

Lw

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Q

Perimeter of Rectangle

A

2L + 2W

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Q

Area of Triangle

A

¹/₂bh

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Q

Area of Circle

A

π r²

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Q

Circumference of Circle

A

2π r

or

π d

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Q

Diameter of Circle

A

2π r

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Q

Volume of Rectangular Box

A

Lwh

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Q

Surface area of Rectangular Box

A

2Lh + 2wh + 2Lw

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Q

Volume of a Sphere

A

⁴/₃ π r³

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Q

Surface are of Sphere

A

4π r²

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Q

Volume of Cylinder

A

π r 2h

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Q

Surface are of Cylinder

A

2π r² + 2π rh

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Q

Pythagorean Theorem

A

c² = a² + b²

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Q

Distance Formula

A

d(P₁,P₂) = sqrt [(x₂- x₁)² + (y₂- y₁)²]

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Q

Midpoint Formula

A

M = (x,y) = { (x₁+ x₂/2 , y₁+ y₂/2) }

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