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There are two rectangles of the same size, 36 cm in length and 18 cm in width. (1) what is the circumference of a square? There are two rectangles of the same size, 36 cm long and 18 cm wide (1) What is the circumference of a square? (2) What is the circumference of a rectangle? (3) Is the area of the two figures equal? What is the area? How to make a formula?
(1) The circumference of the square is 36 × 4 = 144 cm
(2) The circumference of the rectangle is (36 × 2 + 18) × 2 = 180 cm
(3) The area of the two figures is the same, 36 × 18 × 2 = 1296 square centimeters
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