a = 9 cm;
b = 3 cm;
s = 7 cm;
P =? cm.
A rectangular parallelepiped is a three-dimensional shape with rectangles on its sides. The perimeter of the parallelepiped is calculated using the following formula: P = 4 * (a + b + c) Where P is the perimeter, a, b and c are the length of the edges of the parallelepiped.
P = 4 * (a + b + c) = 4 * (9 + 3 + 5) = 4 * 18 = 72 (cm)
Answer: 72 cm is the sum of the lengths of all the edges of a rectangular parallelepiped.
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