You can put this solution on YOUR website! A diameter of a circle measures 52 units.
52/2 = 26 units is the radius
Find the length of a chord that is 10 units from the center
A right triangle is formed by the radius (26), 10, and half the the chord (.5c)
Solve this using pythag
10^2 + (.5c)^2 = 26^2
100 + .25c^2 = 676
.25c^2 = 676 - 100
c^2 = 576/.25
c =
c = 48 units is the chord