The perimeter of the rectangle is 10cm. one side is known – 1cm. find the unknown side.
| September 6, 2021 | education
The perimeter of a rectangle whose opposite sides are equal corresponds to 10 cm.Consequently, the sum of its two unequal sides is 10: 2 = 5 cm.
The width is 1 cm, we find the length, denoting it for “x” we write down the letter expression:
x + 1 = 5.
To find the first term, subtract the second from the sum:
x = 5 – 1 = 4.
Answer: The length of such a figure = 4 cm.
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