Hello!
This makes a triangle
The left side is 52 inches
The bottom side is 60
We know use the Pythagorean Theorem
[tex] a^{2} + b^{2} = c^{2} [/tex]
a is a leg
b is the other leg
c is the hypotenuse
We are looking for c
Put in the values you know
[tex] 52^{2} + 60^{2} = c^{2} [/tex]
square the number
[tex]2704+3600 = c^{2} [/tex]
Add the numbers
[tex]6304 = c^{2} [/tex]
Take the square root of the number
The answer is 79.4
Hope this helps!