Question

To the nearest tenth, what is the length of the hypotenuse of an isosceles right triangle with a leg of 7 square root 3 inches?

Answer 1

If it's a right triangle, and is also an isosceles triangle, namely two sides are of equal length, that means the other non-right-angles are 45° each, so the triangle is a 45-45-90 triangle, and thus we can apply the 45-45-90 rule, so let's do so.  Check the picture below.