Math Problem Statement
The net of a square pyramid is shown below. What is the surface area of the square pyramid?
Solution
To find the surface area of the square pyramid, we need to calculate the area of its base and its four triangular faces.
Step-by-step Solution:
-
Calculate the Base Area:
- The base of the square pyramid is a square with side length given as 2 feet.
- Area of the base (square) = .
-
Calculate the Area of One Triangular Face:
- Each triangular face has a base of 2 feet (same as the side of the square base).
- The height of each triangle (slant height) is given as 3 feet.
- Area of a triangle = .
-
Calculate the Surface Area of the Four Triangular Faces:
- Since the pyramid has four identical triangular faces, the total area of these triangles is:
- .
-
Total Surface Area:
- The total surface area of the square pyramid is the sum of the base area and the area of the four triangles:
- .
So, the surface area of the square pyramid is:
Would you like more details or have any questions?
Related Questions:
- How do you find the surface area of a triangular pyramid?
- How would the surface area change if the slant height increased?
- What is the formula for the volume of a square pyramid?
- How do you determine the slant height if only the vertical height is given?
- Can you derive the formula for the lateral surface area of a pyramid?
Tip: When calculating surface areas of 3D shapes, always break the shape into smaller 2D shapes and sum their areas.
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Math Problem Analysis
Mathematical Concepts
Geometry
Surface Area
Square Pyramid
Formulas
Area of a square = side^2
Area of a triangle = (1/2) * base * height
Surface Area of a Pyramid = Base Area + Lateral Surface Area
Theorems
Properties of a Pyramid
Pythagorean Theorem (if calculating slant height)
Suitable Grade Level
Grades 7-9
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