You can
put this solution on YOUR website!The intersection of the barn and silo is a secant line
that cuts across the circular base and is 10' long.
Draw a perpendicular from center of silo to the center of the secant.
Problem says center to the secant is 5". It divides the secant into
2 5' sections, forming 2 45-45-90 triangles. The area of the
base of the silo is therefore,

capacity is height X area of base

ft3
unless I made a mistake