Find the perimeter of the rectangle if its Width is 8 dm and its length is 15 cm.
| June 28, 2021 | education
1dm = 10 cm;
Let’s express the width of the rectangle in decimeters:
a = 8 dm = 8 * 10 cm = 80 cm;
The area of a rectangle is equal to the product of its sides:
S = a * b;
S = 80 cm * 15 cm = 1200 cm²;
Let’s express the result in decimetres:
S = 1200 cm² = 1200/10 dm² = 120 dm².
Answer: 120 dm²
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