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    4 rectangular strips of wood, each 30 cm long and 3 cm wide, are arranged to form the outer section

    4 rectangular strips of wood, each 30 cm long and 3 cm wide, are arranged to form the outer section of a picture frame. Determine the area inside the wooden frame. Area inside forms a square, with a length of 30 - 3 - 3 = 24. We subtract 3 twice, because we account for 2 rectangular strips with...
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    A rectangular garden is 5 ft longer than it is wide. Its area is 546 ft2. What are its dimensions?

    A rectangular garden is 5 ft longer than it is wide. Its area is 546 ft2. What are its dimensions? Area of a rectangle is lw. lw = 546ft^2 We know that l = w + 5. Substitute (2) into (1) (w + 5)w = 546 w^2 + 5w = 546 Subtract 546 from each side w^2 + 5w - 546 = 0 Using the positive root...
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    A postcard is 4 inches tall and 5 inches wide. What is its area?

    A postcard is 4 inches tall and 5 inches wide. What is its area? A postcard is a rectangle. The area is 4 x 5 = 20 square inches
  4. math_celebrity

    Hari planted 324 plants in such a way that there were as many rows of plants as there were number of

    Hari planted 324 plants in such a way that there were as many rows of plants as there were number of columns. Find the number of rows and columns. Let r be the number of rows and c be the number of columns. We have the area: rc = 324 Since rows equal columns, we have a square, and we can set r...
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    A=2(l+w) for l

    Multiply through: A = 2l + 2w To solve for l, subtract 2w from each side: 2l = A - 2w Divide each side by 2 l = (A - 2w)/2
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