The side of the parallelogram is three times the size of the other side. Find the sides of the parallelogram if its perimeter is 24 cm.

Parallelogram property: two opposite sides are equal. Total sides 4. Formula of parallelogram perimeter:
P = 2 (a + b), where a and b are sides.
Let’s make an equation. Let x be the smaller side of the parallelogram. Then:
2 (3x + x) = 24
6x + 2x = 24
8x = 24 | :8
x = 3.
The smaller side of the parallelogram is 3. The larger side is three times larger. Let’s find the big side:
3 * 3 = 9.
Answer: 3, 3, 9 and 9.