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10 cards from this deck
Total area of all outer surfaces of a 3D object
Square units (e.g. cm2\text{cm}^2cm2, m2\text{m}^2m2, mm2\text{mm}^2mm2)
Flat 2D pattern showing all faces of a solid shape
SA=2πr2+2πrhSA = 2\pi r^2 + 2\pi rhSA=2πr2+2πrh
SA=4πr2SA = 4\pi r^2SA=4πr2
Two circular ends and one rectangle
2πr2\pi r2πr (circumference of circular ends)
Flat surfaces on solid objects
One square base + four triangular faces
Remember to square the radius
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