A solid cylinder has a radius of 2 cm and a length of 7 cm. It has a density of 3.1 g/cm 3. What is the mass of the cylinder?
A Solid cylinder is defined as a three-dimensional solid figure which consists of two circular bases connected with two parallel lines.
Answer: Mass of the cylinder having a radius of 2 cm, length of 7 cm and a density of 3.1 g/cm3 is 272.8g
Let's look into the relationship between mass,density and volume
Given: Radius (r) of the cylinder = 2cm
Height (h) of the cylinder = 7cm
Density = 3.1 g/cm3
Mass = density × volume --------- (1)
Volume of cylinder = π × r2 × h
= (22/7) × 22 × 7
= 22 × 4
= 88 cm3
From (1), Mass = 3.1 × 88
Therefore, mass of the cylinder having a radius of 2 cm, length of 7 cm and a density of 3.1 g/cm3 is 272.8g