Area of Rectangles

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Area of Rectangles. Return to table of contents. Area - The number of square units (units 2 ) it takes to cover the surface of a figure. ALWAYS label units 2 !!!. How many 1 ft 2 tiles does it take to cover the rectangle? Use the squares to find out!
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Area of RectanglesReturn to table of contentsArea - The number of square units (units2) it takes to cover the surface of a figure.ALWAYS label units2!!!How many 1 ft2 tiles does it take to cover the rectangle?Use the squares to find out!Look for a faster way than covering the whole figure.12 ft6 ftThe Area (A) of a rectangle is found by using the formula: A = length(width)A = lwThe Area (A) of a square is found by using the formula: A = side(side)A = s265What is the Area (A) of the figure?15 ft6 ft66Find the area of the figure below.767Dr. Dan wants to keep his kitten from running through his flower bed by putting up some fencing. The flower bed is 10 ft. by 6ft. Will Dr. Dan need to know the area or the perimeter of his flower bed to keep his kitty from trampling the flowers?AAreaBPerimeter68Now solve the problem.... Dr. Dan wants to keep his kitten from running through his flower bed by putting up some fencing. The flower bed is 10 ft. by 6ft. How much fencing will he need?Area of ParallelogramsReturn to table of contentsArea of a ParallelogramLet's use the same process as we did for the rectangle. How many 1 ft2 tiles fit across the bottom of the parallelogram?Area of a Parallelogram.Let's use the same process as we did for the rectangle. If we build the parallelogram with rows of 14 ft2, what happens?14 ftHow tall is the parallelogram?How can you tell?How does this help us find the area of the parallelogram?4 ft14 ftHow do you find the area of a parallelogram?The Area (A) of a parallelogram is found by using the formula: Note: The base & height always form a right angle! A = base(height)A = bhExample.Find the area of the figure.4 cm2.2 cm2.2 cm1.9 cm4 cmclick to revealTry These.Find the area of the figures.11 m820 m14 m5711 mclick to revealclick to reveal469Find the area.11 ft10 ft12 ft70Find the area.17 in12 in12 in10 in17 in71Find the area.7 m13 m13 m11 m7 m72Find the area.
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