The length of a rectangular parallelepiped is 5.9 cm, width 4 cm and height 12 cm
| February 15, 2021 | education
The length of a rectangular parallelepiped is 5.9 cm, width 4 cm and height 12 cm. Find the volume of the surface area and the sum of the lengths of all the edges of this parallelepiped.
1) Formula for finding the volume of a rectangular parallelepiped:
V = a * b * c;
V = 5.9 * 4 * 12 = 283.2 (cm ^ 3).
Answer: V = 283.2 cm ^ 3.
2) Formula for finding the surface area of a rectangular parallelepiped:
S = 2 * (a * b + b * c + a * c).
S = 2 * (5.9 * 4 + 4 * 12 + 5.9 * 12) = 2 * (23.6 + 48 + 70.8) = 2 * 142.4 = 284.8 (cm ^ 2) …
Answer: S = 284.8 cm ^ 2.
3) Formula for finding the sum of the lengths of all edges:
L = 4 * (a + b + c).
L = 4 * (5.9 + 4 + 12) = 4 * 21.9 = 87.6 (cm).
Answer: L = 87.6 cm.
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