Polygon Areas 1 The area of a rectangle Tandi Clausen-May Click the mouse

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The area of a rectangle Click the mouse

We can fill the rectangle with squares. Click the mouse

We can measure the area in square units. 4 3 We can measure the area in square units. 3 rows of 4 12 square units 5 7 6 7½ 6 rows of 7½ 7 rows of 5 45 square units 35 square units Click the mouse

Summary Area of a Rectangle = number in a row × number of rows height Area of a Rectangle base = number in a row × number of rows = length of a row × number of rows = base × height Click the mouse

The area of a parallelogram and a triangle Now watch Polygon Areas 2 The area of a parallelogram and a triangle Tandi Clausen-May