SAT math formulas
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Last updated 10:17 PM on 1/29/26
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13 Terms
1
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degrees in a circle
360
2
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degrees in a line
180
3
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Degrees in a rectangle or square
360
4
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Degrees in a triangle
180
5
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area of a triangle
(Base x Width) / 2 or Base x Width x (1/2)
6
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Pythagorean theorem
a2 + b2 = c2
7
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Special right triangles
3:4:5, 8:15:17, 5:12:13, and 7:24:25
8
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30-60-90 Triangles
2x (hypotenuse) - x - x times (root 3)
9
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45-45-90 triangles
x - x - x times (root 2)
10
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Area of a circle (terms of pi)
pi times r2
11
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Circumference of a circle (terms of pi)
pi times d
12
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Equation of a circle
(x-h)2 - (y-k)2 = r2
point (h,k) is the center of the circle
13
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Area of a cylinder
pi times r2 times h
Note 
Flashcards (20)