The perimeter of the rectangle is 68 mm. One side is 15% of the perimeter.
| September 2, 2021 | education
The perimeter of the rectangle is 68 mm. One side is 15% of the perimeter. What is the length of the second, unequal, side of the rectangle?
The perimeter of a rectangle is calculated using the formula: p = 2 * (a + b), where a and b are the sides of the rectangle.
By condition, p = 68 mm, and b = 0.15 * 68 mm = 10.2 mm.
We get:
2 * (a + b) = 2 * a + 2 * b = 2 * a + 2 * 10.2 = 68.
Solve the equation and find side a:
2 * a = 47.6,
a = 23.8 mm.
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