The perimeter of the rectangle is 20 cm, the length of one side is 3/10 of the perimeter. Find the lengths of the sides of the rectangle.
| December 3, 2020 | education
perimeter = 20 cm
perimeter = (length + width) * 2
the length is equal to 3/10 of the perimeter:
length = 3/10 * 20 = 6cm
means width = (20 – (6 + 6)) / 2 = (20-12) / 2 = 8/2 = 4cm
Answer: 6 cm and 4 cm
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