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10 cards from this deck
A portion of a circle's circumference
Region bounded by two radii and the arc between them
l=rhetal = r hetal=rheta
rac{ heta}{360} imes 2pi r
A = rac{1}{2}r^2 heta
A = rac{ heta}{360} imes pi r^2
P=(heta+2)rP = ( heta + 2)rP=(heta+2)r
Arc length plus two radii
pipipi radians
Shorter vs longer arc between two points
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