Answer:
The monument contains 24.74 m³ of marbles
Explanations:
The shape of the monument is a cylinder
The radius of the cylinder, r = 1.5 m
The altitude (height) of the monument, h = 3.5 m
The cubic meters of marbles contained by the monument is the volume of the moument.
Since the monument is cylindrical, we will calculate the volume of the cylinder.
V = πr²h
V = 3.142 x 1.5² x 3.5
V = 24.74 m³
The monument contains 24.74 m³ of marbles