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10 cards from this deck
Figure made from two or more basic plane shapes joined together
A=s2A = s^2A=s2 where sss is the side length
A=12bhA = \frac{1}{2}bhA=21bh where bbb is base, hhh is height
A=12πr2A = \frac{1}{2}\pi r^2A=21πr2 where rrr is the radius
a2+b2=c2a^2 + b^2 = c^2a2+b2=c2 where ccc is the hypotenuse
When shapes are joined side by side
When one shape is cut out or removed from another
Squares, rectangles, triangles, circles, semicircles
Radius is half of the diameter
Must be perpendicular to each other
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