Question 866267
Let:

Ryan to Andrew be - a = 10 ft
Aaron to Andrew be - b = 45 ft
Ryan to Aaron be - c

Using the Pythagorean Theorem:

{{{c^2=a^2+b^2}}}
{{{c^2=10^2+45^2}}}
{{{c^2=100+2025}}}
{{{c^2=2125}}}

HOPE THAT HELPS!!