Calculate Rectangular Prism Volume: 15 m² Base Area with 3 m Height

Volume Calculation with Given Base Area

The area of the base of the rectangular prism below is 15 m².

The length of the lateral edge is equal to 3 m².

What is the volume of the rectangular prism?

S=15S=15S=15333

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1

Understand the problem

The area of the base of the rectangular prism below is 15 m².

The length of the lateral edge is equal to 3 m².

What is the volume of the rectangular prism?

S=15S=15S=15333

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given information
  • Step 2: Apply the appropriate volume formula
  • Step 3: Perform the necessary calculations

Let's work through each step:
Step 1: We know that the area of the base S S is 15 m², and the height h h is 3 m.
Step 2: We'll use the formula for the volume of a rectangular prism: V=S×h V = S \times h .
Step 3: Plugging in the values, we have V=15×3 V = 15 \times 3 .

Calculating this gives us V=45 V = 45 m³.

Therefore, the volume of the rectangular prism is 45m3 45 \, \text{m}^3 .

3

Final Answer

45

Key Points to Remember

Essential concepts to master this topic
  • Formula: Volume = Base Area × Height for rectangular prisms
  • Technique: Multiply given base area 15 m² by height 3 m
  • Check: Units should be cubic: m² × m = m³ ✓

Common Mistakes

Avoid these frequent errors
  • Confusing lateral edge length with height measurement
    Don't treat the lateral edge as anything other than height = wrong volume calculation! The lateral edge IS the height of the prism in this context. Always use the lateral edge length as your height value in the volume formula.

Practice Quiz

Test your knowledge with interactive questions

A rectangular prism has a base measuring 5 units by 8 units.

The height of the prism is 12 units.

Calculate its volume.

121212888555

FAQ

Everything you need to know about this question

What exactly is a lateral edge in a rectangular prism?

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A lateral edge is a vertical edge that connects the top and bottom faces. In this problem, it represents the height of the prism, which is 3 m.

Why don't I need to find the length and width separately?

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Because you're already given the base area (15 m²)! The base area already includes length × width, so you just need to multiply by height.

How do I know the units for my final answer?

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Volume units are always cubic units. Since base area is m² and height is m, your volume will be m² × m = .

What if the problem gave me length and width instead?

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Then you'd first calculate base area by multiplying length × width, then multiply that result by the height to get volume.

Can I use this same method for other prisms?

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Yes! Volume = Base Area × Height works for any prism, whether it's rectangular, triangular, or any other shape with parallel bases.

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