Math Problem Statement

Determine the lateral and total surface area of the square pyramid.

Solution

The image you uploaded is of a square pyramid, and you are asked to determine both the lateral and total surface area.

Let's break it down step by step:

  1. Lateral Surface Area: The lateral surface area of a square pyramid can be calculated using the formula:

    Alateral=12×Perimeter of base×Slant heightA_{\text{lateral}} = \frac{1}{2} \times \text{Perimeter of base} \times \text{Slant height}

    The perimeter of the base (which is a square) is calculated as:

    Perimeter=4×side length\text{Perimeter} = 4 \times \text{side length}

    The side length of the square base is given as 6cm6 \, \text{cm}, so:

    Perimeter=4×6=24cm\text{Perimeter} = 4 \times 6 = 24 \, \text{cm}

    The slant height, as shown in the diagram, is 16cm16 \, \text{cm}.

    Now, we can calculate the lateral surface area:

    Alateral=12×24×16=192cm2A_{\text{lateral}} = \frac{1}{2} \times 24 \times 16 = 192 \, \text{cm}^2

  2. Total Surface Area: The total surface area includes the lateral surface area plus the area of the base. The area of the base is:

    Abase=side length2=62=36cm2A_{\text{base}} = \text{side length}^2 = 6^2 = 36 \, \text{cm}^2

    Therefore, the total surface area is:

    Atotal=Alateral+Abase=192+36=228cm2A_{\text{total}} = A_{\text{lateral}} + A_{\text{base}} = 192 + 36 = 228 \, \text{cm}^2

Final Answers:

  • Lateral Surface Area = 192cm2192 \, \text{cm}^2
  • Total Surface Area = 228cm2228 \, \text{cm}^2

Let me know if you'd like further clarification or details!

Here are some additional questions for your practice:

  1. What is the formula for the volume of a square pyramid?
  2. How would the lateral surface area change if the slant height was increased?
  3. What is the relationship between the slant height and the height of a square pyramid?
  4. How do you calculate the area of a triangle in the lateral surface area of a pyramid?
  5. If the side length of the base was doubled, how would that affect the total surface area?

Tip: When working with geometric formulas, always make sure you’re using the correct measurements for each part of the shape (like slant height, base side, etc.). This ensures accurate calculations!

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Math Problem Analysis

Mathematical Concepts

Surface Area
Geometry
Pyramids
Perimeter

Formulas

Lateral Surface Area = (1/2) × Perimeter of base × Slant height
Perimeter = 4 × side length of square
Area of base = side length²
Total Surface Area = Lateral Surface Area + Area of base

Theorems

Surface Area of 3D Shapes

Suitable Grade Level

Grades 7-9