Geometry formulas
3.0(2)
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Last updated 2:42 PM on 1/16/24
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14 Terms
1
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Circumference
2πr or πd
2
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Arc length
(ø/360)x 2πr
3
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Area of a rectangle
Base x Height
4
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Area of a triangle
½ base x Height
5
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Area of a parallelogram
Base x Height
6
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Area of a trapezium
(a+b/ 2) x Height
7
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Area of a circle
πr²
8
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Area of a sector
(ø/360) x πr²
9
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Surface area
Sum of area of all faces
10
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Surface area of open or solid cylinder
Formula in sheet + Area of 1 or 2 circles (according to number of ends)
11
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Surface area of solid cone
Formula in sheet + Area of 1 circle
12
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Volume
Length + width + height
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Volume of solid with uniform cross-section
Area of cross section x Length
14
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Density
Mass ÷ Volume
