The diagonal of the rectangular solid will be 2√21. The diagonal is denoted by d.
What exactly is a rectangle?
It has four sides and is a polygon. The internal angle total is 360 degrees.
The opposing sides of a rectangle are parallel and equal, and each angle is 90 degrees. Its diagonals are equally equal and meet at the midpoint.
Given data;
L(Length)=8
W(Width)=4
H(Height)=2
The diagonal (d) of the rectangular solid is found by the formula:
[tex]\rm Diagonal =\sqrt{(L^2+W^2+H^2)}\\\\ (d) =\sqrt {(8^2+4^2+2^2)}\\\\ d= \sqrt{(64+16+4)} \\\\ d=\sqrt84\\\\ d=2\sqrt21[/tex]
Hence, the diagonal (d) of the rectangular solid will be 2√21.
To learn more about the rectangle, refer to the link https://brainly.com/question/13747846
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