Page 4 E&M - Vectors, Geometry, and Trigonometry

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Last updated 3:15 AM on 9/8/26
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13 Terms

1
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Rectangle area

A = bh

2
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Triangle area

A = (1/2)bh

3
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Circle circumference

C = 2πr

4
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Circle area

A = πr²

5
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Rectangular solid volume

V = ℓwh

6
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Cylinder surface area

S = 2πrℓ + 2πr²

7
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Cylinder volume

V = πr²ℓ

8
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Sphere volume

V = (4/3)πr³

9
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Sphere surface area

S = 4πr²

10
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Right triangle: sin θ

sin θ = a/c (opposite/hypotenuse)

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Right triangle: cos θ

cos θ = b/c (adjacent/hypotenuse)

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Right triangle: tan θ

tan θ = a/b (opposite/adjacent)

13
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Pythagorean theorem

a² + b² = c²