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Perimeter of a Triangle
P = a + b + c
Where: P = Perimeter, a = a, b = base, c = c
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, b = 5, c = 10
Find: P (Perimeter)
- Formula: P = a + b + c
- Substitute the values: P = 10 + 5 + 7
- Result: P = 22
Answer: P = 22
Calculator
How to calculate Perimeter of a Triangle
- Write down the formula: P = a + b + c.
- Note the known values (a, b, c).
- Substitute them and simplify to find P.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Perimeter of a Triangle?
The formula is P = a + b + c, where P = Perimeter, a = a, b = base, c = c.
What is Perimeter of a Triangle when a = 7, b = 5, c = 10?
P = 22. Substitute the values into P = a + b + c and simplify.