Find the area of a rectangle, one side of which is 21 cm, and the other side is three times smaller.
| July 1, 2021 | education
By the statement of the problem, we know that the length of one side of the rectangle is 21 centimeters. Let’s find the second side, knowing that it is 3 times smaller. To do this, we will reduce the length of the first side by three times:
21/3 = 7 centimeters.
Find the area of the rectangle. To do this, multiply the length of one side by the length of the other:
21 * 7 = 147 cm2.
Conclusion: the area of the rectangle is 147 square centimeters.
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