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13 cards from this deck
A portion of a circle like a slice of pie
Minor sector and major sector
The smaller portion of the circle
The larger portion of the circle
Two straight lines from centre to edge of circle
x360°\frac{x}{360°}360°x
x360°×πr2\frac{x}{360°} \times \pi r^2360°x×πr2
The curved edge of the sector
x360°×2πr\frac{x}{360°} \times 2\pi r360°x×2πr
Arc length + radius + radius (or arc + 2r)
Degrees (not radians)
Both radii (2 × radius)
Only at the final answer for better accuracy
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