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SAT Reference Sheet

Geometry (Given on Test)

Circle Area & Circumference

$$ A = \pi r^2 $$ $$ C = 2\pi r $$

Rectangle Area

$$ A = lw $$

Triangle Area

$$ A = \frac{1}{2}bh $$

Pythagorean Theorem

$$ a^2 + b^2 = c^2 $$

Cylinder Volume

$$ V = \pi r^2 h $$

Sphere Volume

$$ V = \frac{4}{3}\pi r^3 $$

Cone Volume

$$ V = \frac{1}{3}\pi r^2 h $$

Rectangular Prism

$$ V = lwh $$

Algebra (Must Memorize)

Slope Formula

$$ m = \frac{y_2 - y_1}{x_2 - x_1} $$

Slope-Intercept

$$ y = mx + b $$

Quadratic Formula

$$ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} $$

Circle Equation

$$ (x-h)^2 + (y-k)^2 = r^2 $$

Exponential Growth/Decay

$$ y = a(1 \pm r)^t $$

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