The diameter of rule is 3 cm of its length is 42 cm. The volume of wood required to make is

Given:

• Diameter = 3 cm, so the radius r = 3 / 2 = 1.5 cm,
• Length (height) of the cylinder h = 42 cm.

Step-by-Step Calculation:

1. Find the radius: r = 1.5 cm.

2. Substitute the values into the formula:

V = π (1.5)² (42)V = 3.1416 × 2.25 × 42V = 3.1416 × 94.5V ≈ 297.43 cm³

Final Answer

The volume of wood required to make the rule is 297 cm³.