Question

The length of Ruben's rectangular living room is 9 meters and the distance between opposite

corners is 10 meters. What is the width of Ruben's living room. Use Pythagorean theorem.

Answer 1

P.Theorem says a^2 + b^2 = c^2
We know c^2 is 10, the diagonal length, and one leg we will call a^2 is 9
10^2 - 9^2 = b^2 (width)
Width is 4.36