Math Problem Statement

A square pyramid with a base length of 5 and a height of 10 is placed vertically inside a cube with a base length of 5. What is the volume of the square pyramid inside the cube?

Solution

To find the volume of the square pyramid placed inside the cube, let's go step by step:

Step 1: Formula for the Volume of a Square Pyramid

The volume VV of a square pyramid can be calculated using the formula: V=13×Base Area×HeightV = \frac{1}{3} \times \text{Base Area} \times \text{Height}

Step 2: Calculate the Base Area of the Square Pyramid

The base of the square pyramid is a square with side length 5 units (since the base length of both the cube and the pyramid is 5 units). Base Area=5×5=25square units\text{Base Area} = 5 \times 5 = 25 \, \text{square units}

Step 3: Height of the Pyramid

The given height of the pyramid is 10 units.

Step 4: Calculate the Volume

Now, substitute the base area and height into the formula for the volume of the pyramid: V=13×25×10=13×250=250383.33cubic unitsV = \frac{1}{3} \times 25 \times 10 = \frac{1}{3} \times 250 = \frac{250}{3} \approx 83.33 \, \text{cubic units}

Final Answer:

The volume of the square pyramid inside the cube is approximately 83.33cubic units83.33 \, \text{cubic units}.

Would you like further details on any step?

Here are some related questions:

  1. How do you find the volume of the cube?
  2. What is the surface area of the pyramid?
  3. How does the volume of a pyramid compare to a cube with the same base area and height?
  4. How would the volume change if the base length of the pyramid were doubled?
  5. How can you find the slant height of the pyramid?

Tip: The volume of a pyramid is always one-third of the volume of a prism with the same base and height.

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Math Problem Analysis

Mathematical Concepts

Geometry
Volume of Solids

Formulas

Volume of a square pyramid V = (1/3) × Base Area × Height

Theorems

Volume of a pyramid theorem: The volume of a pyramid is one-third of a prism with the same base and height.

Suitable Grade Level

Grades 7-9