Find the height of a cuboid whose volume is 168 cubic metre and the area of the base is 28 square metre.

The length of a reservoir is 2.5m. It's width is 2 m and its height is 4 m. If it is half-filled with water, find the volume of the water in the reservoir.

Pls consider and help me**

L w h = 168

but
L w = 28
so
h = 168/28
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(1/2) (2.5)(2)(4) = Volume

To find the height of a cuboid whose volume is 168 cubic meters and the area of the base is 28 square meters, we can use the formula for the volume of a cuboid:

Volume = Base area × Height

Given that the volume is 168 cubic meters and the area of the base is 28 square meters, we can substitute these values into the formula:

168 = 28 × Height

To solve for Height, we can rearrange the equation:

Height = 168 / 28

Calculating the division, we find that the height of the cuboid is 6 meters.

Now, moving on to the second question. We are given the dimensions of a reservoir, which has a length of 2.5 meters, a width of 2 meters, and a height of 4 meters. Since the reservoir is half-filled with water, we need to calculate the volume of the half-filled reservoir.

The formula for the volume of a cuboid is:

Volume = Length × Width × Height

Substituting the given values, we have:

Volume = 2.5 × 2 × 4

Calculating the multiplication, we find that the volume of the reservoir is 20 cubic meters.

Since the reservoir is half-filled with water, we need to find the volume of the water in the reservoir. This can be calculated as half of the volume of the reservoir:

Water Volume = Volume of reservoir / 2

Substituting the value of the reservoir volume:

Water Volume = 20 / 2

Calculating the division, we find that the volume of the water in the reservoir is 10 cubic meters.