The calculation may use a subtraction of areas where a rectangle has been removed from a larger rectangle. Also has sections on calculating length when given perimeters and to draw shapes with given perimeter. The total area of a compound shape is found by adding up the areas of the rectangles that have created the whole shape. Perimeter Worksheet (KS3) Subject: Mathematics Age range: 11-14 Resource type: Worksheet/Activity File previews pdf, 382.15 KB Worksheet offering a variety of questions to work out perimeter of triangle, square, rectangle and compound shape. The calculation for finding the area of a square or a rectangle is found by using a formula close formula A fact, rule, or principle that is expressed in words or in mathematical symbols. Area is measured in square units, including cm² and m². Area is measured in square units, for example, square centimetres or square metres: cm² or m². , it can look like two or more rectangles joined together.įor a shape drawn on a grid the area close area A measure of the size of any plane surface or 2D shape. or, as a compound shape close compound shape (composite shape) A shape formed by combining two or more shapes. or a rectangle close rectangle A quadrilateral with opposite pairs of sides that are both equal in length and parallel. All four sides are equal in length and all four angles are right angles. shape may be a square close square A regular quadrilateral. A rectilinear close rectilinear (shape) A shape made up of straight lines and right angles.
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