How do you find the diagonal of a rectangle whose length is 12 in. and whose width is 9 in?
1 Answer
Oct 13, 2015
Explanation:
The length, width, and diagonal form a right angled triangle, with the diagonal as the hypotenuse.
Hence, Pythagoras Theorem is valid and may used to solve as follows :
Note we only consider the positive square root since the diagonal is a distance and cannot be negative in this case.
