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I2e: … and more shapes. - I3e: Polygons in the plane. - I4e: Angles in the plane. - I5e: Walking north, east, south, and west in the plane. - I6e: Areas of rectangles. - I7e: What is the area of the shaded triangle?.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.