The rectangle is 100 cm long and 4 times its width. How many square decimeters is the area of this rectangle?
| May 1, 2021 | education
1) Find the width of the given rectangle.
100: 4 = 25 cm
2) Find the area of this rectangle.
100 * 25 = 2500 cm2.
3) Let’s convert cm2 to dm2.
1 dm2 = 10 cm * 10 cm = 100 cm2
2500 cm2: 100 cm2 = 25 dm2
Answer: the area of this rectangle is 25 dm2.
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