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Handout
Wolfram Research

Wolfram Math World: Area

For Students 9th - 10th Standards
Definitions and formulas for the computation of surface areas of triangles, rectangles, and any regular polygon. Helpful links to related pages.
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Handout
Massachusetts Institute of Technology

Mit: Area in Polar Coordinates

For Students 9th - 10th
This site gives the formula for computing area in polar coordinates.