Question

Difficulty: MediumVolume and Surface Area of 3D Figures

Pair the given geometric descriptions of 3D figures with their corresponding exact volumes.

  • A cylinder with a base radius of 44 and a height of 5580π80\pi
  • A rectangular prism measuring 88 units long, 55 units wide, and 22 units high8080
  • A cube having an edge length of 446464
  • A sphere with a radius of 3336π36\pi

Answer

The cylinder matches 80π80\pi, the rectangular prism matches 8080, the cube matches 6464, and the sphere matches 36π36\pi.
Matching each figure to its correct volume requires applying the specific volume formula for that geometric shape: cylinder (V=πr2hV = \pi r^2h), rectangular prism (V=lwhV = lwh), cube (V=s3V = s^3), and sphere (V=43πr3V = \frac{4}{3}\pi r^3).

Step-by-Step Solution

1
Calculate the volume of the cylinder.
V=π(42)(5)=80πV = \pi(4^2)(5) = 80\pi
Applying the cylinder volume formula V=πr2hV = \pi r^2h.
2
Calculate the volume of the rectangular prism.
V=8×5×2=80V = 8 \times 5 \times 2 = 80
Applying the rectangular prism volume formula V=lwhV = lwh.
3
Calculate the volume of the cube.
V=43=64V = 4^3 = 64
Applying the cube volume formula V=s3V = s^3.
4
Calculate the volume of the sphere.
V=43π(33)=36πV = \frac{4}{3}\pi(3^3) = 36\pi
Applying the sphere volume formula V=43πr3V = \frac{4}{3}\pi r^3.

Key Concept

Volume and Surface Area of 3D Figures
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