Answer: V=1578.28 m³
Explanation:
Volume is given as the formula

r, radius, is the line from the center point to any end of the semi-sphere(that's what this shape is called) Here they show radius as
r=9.1
Substitute r into the formula
plug into calculator
V=1578.275 round to hundredths means 3 digits after the decimal point
V=1578.28 the number after the 7 is 5 or greater so you round up.