Calculate the perimeter of a rectangle with sides of 20 dm and 3 cm. Find the area of a rectangle
| March 21, 2021 | education
Calculate the perimeter of a rectangle with sides of 20 dm and 3 cm. Find the area of a rectangle with sides of 30 cm and 2 dm.
To calculate the perimeter of a rectangle, add the lengths of all sides.
20 dm + 20 dm + 3 cm + 3 cm = 200 cm + 200 cm + 3 cm + 3 cm = 406 cm = 40 dm 6 cm.
To find the area of a rectangle, multiply the length by the width. In this case, the units of measurement of length must be expressed in the same value.
30 cm * 2 dm = 3 dm * 2 dm = 6 dm2
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