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### Grade 7 - Mathematics9.14 Perimeter of the Rectangle

 Example: The length and width of a retangle ABCD are 7 cm and 10 cm. Find its perimeter. Solution: Perimeter of the Rectangle (P) = 2 [l + w] Where P is perimeter of the rectangle, l is length and w is width. Given that, lengh (l) = 7 cm and width (w) = 10 cm. P = 2 [l + w] P = 2 [7 + 10] P = 2 [17] P = 34 cm. Directions: Read the above example carefully and answer the following questions. Also find 10 different rectangles around you, measure their sides and find the perimetres.
 Q 1: The length of a rectangle is 4 times its width. Find the length if its perimeter is given by 40 cm.13 cm25 cm16 cm12 cm Q 2: The length of a rectangle is 7 more than its width. Find the length if its perimeter is given by 34 cm.24 cm17 cm12 cm14 cm Q 3: The length and width of a retangle ABCD are 6 cm and 5 cm. Find its perimeter.22 cm11 cm15 cm.25 cm Q 4: The length and width of a retangle ABCD are 3.25 cm and 9.75 cm. Find its perimeter.26 cm13 cm26 cm16 cm Q 5: The length and width of a retangle ABCD are x cm and y cm. Find its perimeter.2y cm2xy cm2(x + y) cm2x cm Q 6: The length of a rectangle ABCD is 4 cm. Find the width if its perimeter is given by 18 cm.8 cm5 cm9 cm16 cm Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!