# SAT Formulas

### Description

Flashcards on SAT Formulas , created by Harley_ on 09/17/2015.
Flashcards by Harley_, updated more than 1 year ago
 Created by Harley_ over 7 years ago
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## Resource summary

 Question Answer Area of a Rectangle A=LW Area of a Triangle A=1/2bh A=1/2ab sin C A=Square root of s(s-a)(s-b)(s-c) Area of a Circle A=πr^2 Area of a Trapezoid A= 1/2 (b1+b2) h Perimeter of a Rectangle P=2l+2w Circumference of a Circle C=2πr Volume of a Rectangular Prism V=lwh Pythagorean Theorem a^2+b^2=c^2 slope-intercept form of a line y=mx+b point-slope form of a line y-y1 =m (x-x1) Arc Length (degrees) s=(pi)r(theta) / 180 Area of a Sector (degrees) A=(pi)r^2(theta) / 360 Slope of a Line m= y2-y1 / x2-x1 Midpoint MP=(x1 + x2/2, y1 + y2/2) Distance d=(square root)(x2-x1)^2 + (y2-y1)^2 Vertex Form of a Parabola y=a (x-h)^2 + k Standard form of a circle (x-h)^2 + (y-k)^2 =r^2 Quadratic Formula X = -b _+ (squareroot) b^2-4ac / 2a Trigonometric Pythagorean Identity sin^2 (theta) + cos^2 (theta) = 1 Right Triangle Trigonometry Sin (theta) = Opp/hyp cos = adj/hyp tan = opp=adj nth term of an arithmetic sequence an = a1 + d (n-1) Nth term of a geometric sequence an = a1 r ^n-1 Volume of a Cylinder V = (pi) r ^2 h Volume of a Sphere V = 4/3 (pi) r ^3 volume of a cone V = 1/3 (pi) r^2 h

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