78.5714286..answer ..........
Volume= 611 yd^3
Explanation=
V=L*W*H/3
V=10*13*14.1/3
V=611
D. DOQ & BOQ together equals 90 degrees
Answer is D, 16. There is a rule about circles regarding this. When there are chords in the circle of equal measure, the distance from the center of the circle to the midpoint of the chord is equal.