The length of the rectangular parallelepiped is 50 decimetres, the width is 80% of the length

| September 16, 2021 | education

The length of the rectangular parallelepiped is 50 decimetres, the width is 80% of the length, and the height is 2-fifths of the length. Find the volume of the box.

To find the percentage of the number, you need to multiply this number by the desired percentage and divide by 100.

1) Find the width of the parallelepiped:

50 * 80: 100 = 40 (dm) – width.

To find the fraction of a number, you need to multiply the given number by the numerator of the desired fraction and divide by its denominator.

2) Find the height of the parallelepiped:

50 * 2: 5 = 20 (dm) – height.

The formula for finding the volume of a rectangular parallelepiped:

V = a * b * c, a is the length, b is the width, c is the height of the parallelepiped.

3) Find the volume of the parallelepiped:

50 * 40 * 20 = 40,000 (dm ^ 3) – volume.

Answer: the volume of a parallelepiped is 40,000 dm ^ 3.



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