Question 910793
The two shorter sides of a right angled triangle have lengths 3m and 6m.
find the length of the hypotenuse in the form a(square root)b metres, where a and b are prime numbers.
=========================
It's the Pythagorean Theorem.
You have to know it.
{{{c^2 = 3^2 + 6^2}}}
{{{c^2 = 45}}}
{{{c = sqrt(45) = 3sqrt(5)}}}