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### 10 Cards in this Set

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• Back
 distance formula sq rt of (x1-x2)2 + (y1-y2)2 slope change in y over the change in x slope equation y=mx+b triangle inequality theorem the length of one side of a triangle must be greater than the difference but less than the sum of the other two sides 3-4-5 triangle 5-12-13 triangle 30-60-90 pythagorean theorem x:x(sq rt 3):2x 45-45-90 x:x:x(sq rt 2} circumference 2(pie)r length of an arc (n/360)x2(pie)r area of a circle (pie)r(sqd) area of a sector (n/360)x((pie)r(sqd))