The length of the rectangular parallelepiped is 15 cm and it is 3 times greater than the width, and the height is greater
| January 12, 2021 | education
The length of the rectangular parallelepiped is 15 cm and it is 3 times greater than the width, and the height is greater than the width by 3. Find the sum of the lengths of all edges.
It is necessary to calculate the width of the rectangular parallelepiped. To do this, we divide its length – 15 centimeters by 3:
15: 3 = 5 centimeters.
The width of the rectangular parallelepiped is 5 centimeters.
Find the height of the rectangular parallelepiped. Let’s add to the width – 5 centimeters 3 centimeters:
5 + 3 = 8 centimeters.
The height of the parallelepiped is 8 centimeters.
Let’s find the sum of all edges:
4 (15 + 5 + 8) = 4 * 28 = 112 centimeters.
Answer: The sum of all the edges of a rectangular parallelepiped is 112 centimeters.
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