final formulas

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Geometry & Trigonometry

9th

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14 Terms

1
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sin

ratio of O/H

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cosin

ratio A/H

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tan

ratio O/A

4
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cube volume formula

V=s³=blh

5
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pyramid volume formula

V=1/3Bh

6
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cone volume formula

V=1/3Bh

7
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prism volume formula

V=Bh

8
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area of a circle

A=πr²

9
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circumference of a circle

C=2πr

10
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area of a trapezoid

A=1/2(b1+b2)h

11
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sphere volume formula

V=4/3πr³

12
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k

scale factor of 1d shapes (length)

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k²

scale factor of 2d shapes (area)

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k³

scale factor of 3d shapes (volume)