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How to determine the perimeter of a quadrilateral using distance formula of four points

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of ...
BBC

How to show the formula for the area of a trapezium

WHAT YOU NEED: A ruler, pens, scissors and paper. Image caption, STEP 1 - TRAPEZIUM x 2: On a rectangular piece of paper, use a ruler to draw two angled lines from the bottom corners to make a ...