Find the diagonal of the rectangular solid with the given measures. l = 18, w = 10, h = 2

For a rectangular prism whose side lengths are the internal diagonal can be calculated as:

So here, we know that:

So:

Answer : The value of diagonal of the rectangular solid is, 20.69 unit.

Step-by-step explanation :

First we have to calculate the side AC.

Using Pythagoras theorem in ΔABC :

Given:

Side AB = l = 18

Side BC = w =  10

Now put all the values in the above expression, we get the value of side AC.

Now we have to calculate the side AD (diagonal).

Using Pythagoras theorem in ΔACD :

Given:

Side AC =

Side CD = h =  2

Now put all the values in the above expression, we get the value of side AD.

Thus, the value of diagonal of the rectangular solid is, 20.69 unit.

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