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14 cards from this deck
A flat surface extending infinitely in all directions
The steepest path down a plane
Parallel, intersecting, skew
Lines that don't meet & aren't parallel (exist in different planes)
Parallel, intersects at point, lies within
Parallel or intersecting
A straight line
Angle between two planes
a2+b2+c2=d2a^2 + b^2 + c^2 = d^2a2+b2+c2=d2
V=13×base area×heightV = \frac{1}{3} \times \text{base area} \times \text{height}V=31×base area×height
asinA=bsinB=csinC\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}sinAa=sinBb=sinCc
a2=b2+c2−2bccosAa^2 = b^2 + c^2 - 2bc \cos Aa2=b2+c2−2bccosA
Area=12absinC\text{Area} = \frac{1}{2}ab \sin CArea=21absinC
Break 3D into 2D triangles
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