The perimeter of the rectangle is 28 dm. Its length is 9 inches. Find the area of the rectangle.
| December 21, 2020 | education
1) The perimeter of a rectangle is the sum of the lengths of all sides. Let us denote the width by X. Let’s make the equation:
9 + 9 + x + x = 28
2x = 28-18
2x = 10
x = 5
Rectangle length – 5dm
2) The area of a rectangle is equal to the product of its sides: 5 * 9 = 45 (dm ^ 2)
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