Checking and securing understanding of perimeter for standard shapes
Lesson 15 / 16
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Lesson outcome
I can calculate the perimeter of rectangles, triangles, parallelograms and trapeziums efficiently.
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The perimeter of any polygon can be found by adding but this may be time consuming.
By considering the properties of the shape, there may be a more efficient method.
There is a formula to find the perimeter of rectangle.
Missing side lengths can be found if the perimeter is known.
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This content is by Cashar and published under an open licence.