A regular quadrilateral is a shape with four sides which are all the same
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its 76 degrees.
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The chart is intended as a visual representation of how vowel sounds are produced as pictured through the left profile of a person's head. The location of a vowel in the chart corresponds
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Let the width of the enclosure be x metres, and let the length of the fencing be P metres. Length of the two ends of the enclosure = 2x, therefore the length = (P  2x) m. So Area
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