Volume of a Cylinder Math Example 1

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Example 1

easy
A cylinder has a radius of 4 cm and a height of 10 cm. Find its volume. Use ฯ€โ‰ˆ3.14\pi \approx 3.14.

Solution

  1. 1
    Step 1: Write the formula for the volume of a cylinder: V=ฯ€r2hV = \pi r^2 h.
  2. 2
    Step 2: Substitute the values: V=ฯ€ร—42ร—10=ฯ€ร—16ร—10=160ฯ€V = \pi \times 4^2 \times 10 = \pi \times 16 \times 10 = 160\pi.
  3. 3
    Step 3: Approximate: Vโ‰ˆ160ร—3.14=502.4V \approx 160 \times 3.14 = 502.4 cmยณ.

Answer

V=160ฯ€โ‰ˆ502.4V = 160\pi \approx 502.4 cmยณ.
The volume of a cylinder is the area of the circular base (ฯ€r2\pi r^2) multiplied by the height (hh). This formula makes intuitive sense: you are stacking up infinitely many thin circular disks of area ฯ€r2\pi r^2 to a total height hh.

About Volume of a Cylinder

The amount of three-dimensional space inside a cylinder, found by multiplying the area of the circular base by the height.

Learn more about Volume of a Cylinder โ†’

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