# Rectangle formula

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This 4 page lesson includes a page that details the formulas for finding the area of a square, rectangle, triangle, parallelogram and trapezoid. The second and third pages are practice problems. Answer Keys included!

Area of a rectangle specifies an area in the coordinate space that is enclosed by the rectangular object. To find the area of a rectangle, multiply the length and the width. Area is usually measured in square units such as square inches, square feet or square meters.In the above figure, the length of the rectangle is "l" and the width of the rectangle is "w". Therefore, the area of the rectangle formula is (l X w) square units.

Area of a Rectangle Formula Math Poster

This product consists of (8.5x11-size) design posters of the area of a rectangle formula, area of a triangle formula, area of a parallelogram and plain posters for each of the formulas. The design posters were created to be colored, and the plain posters are available if a student chooses to create their own design.By coloring or drawing these posters, the student will better memorize/learn the formulas.

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Area of a rectangle specifies an area in the coordinate space that is enclosed by the rectangular object. To find the area of a rectangle, multiply the length and the width. Area is usually measured in square units such as square inches, square feet or square meters.n the above figure, the length of the rectangle is "l" and the width of the rectangle is "w". Therefore, the area of the rectangle formula is (l X w) square units.

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4.MD.3 - Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.

Derive the formula for a parallelogram using only the formula for the area of a rectangle. It should make more sense for the student!

These Area and Perimeter Posters are useful visual reminders for students…