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Lateral surface area of a Square Pyramid
LSA = 2al
Where: LSA = Lateral surface area, a = side of the square base, l = slant height of a triangular face
Use the same units for all lengths (e.g. all in cm); areas come out in cm², volumes in cm³.
Solved example
Given: a = 7, l = 5
Find: LSA_ (Lateral surface area)
- Formula: LSA = 2·a·l
- Substitute the values: LSA = 2·5·7
- Result: LSA = 70
Answer: LSA_ = 70
Calculator
How to calculate Lateral surface area of a Square Pyramid
- Write down the formula: LSA = 2al.
- Note the known values (a, l).
- Substitute them and simplify to find LSA_.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Lateral surface area of a Square Pyramid?
The formula is LSA = 2al, where LSA = Lateral surface area, a = side of the square base, l = slant height of a triangular face.
What is Lateral surface area of a Square Pyramid when a = 7, l = 5?
LSA_ = 70. Substitute the values into LSA = 2al and simplify.