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Quick Guide to Perimeter and Area Calculations

Learn how to calculate the perimeter and area of various shapes like square, triangles, rectangle, parallelogram, and trapezium. Understand the concepts and formulas to find the perimeter and area easily.

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Quick Guide to Perimeter and Area Calculations

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  1. Perimeter and Area www.assignmentpoint.com

  2. Perimeter • The perimeter of a closed plane figure is the length of its boundary. 8cm 10cm 7cm 8cm 15cm Perimeter = 15 + 8 + 10 + 8 + 7 = 48cm www.assignmentpoint.com

  3. Perimeter • Square • Triangles • Rectangle b=4cm b c L= 8cm a L=6cm P = 8 + 5 + 8 + 5 P = 6 + 6 + 6 + 6 P = a + b + c P = l + b + l + b = 2(l + b) P = l + l + l + l = 4l or 4s www.assignmentpoint.com

  4. Area • Area is the space within the boundary of a figure. www.assignmentpoint.com

  5. Area of parallelogram • Area of parallelogram = base x height height base www.assignmentpoint.com

  6. Area of a triangle • Area = ½ x base x height h h h b b b www.assignmentpoint.com

  7. Area of trapezium • Area of trapezium ABCD = area of ΔABC + area of ΔACD = (½ x BC x AH) + (½ x AD x CK) = ½ x AH x (BC + AD) = ½ x height x sum of parallel sides D K A B C H www.assignmentpoint.com

  8. THANK YOU www.assignmentpoint.com

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