Isosceles Triangle Calculator
Result
Calculated result
0.7227342478
Based on the values entered.
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Isosceles Triangle Calculator — free online calculator.
Formula
Height = √(leg²−(base/2)²); Area = ½×base×height; Perimeter = base+2×leg; Base angle = arccos(base/(2×leg))
- Isosceles Triangle Calculator calculates its result from Leg, Base. It uses the formula Height = √(leg²−(base/2)²); Area = ½×base×height; Perimeter = base+2×leg; Base angle = arccos(base/(2×leg)). Change any input to recalculate the result instantly.
- The main inputs are Leg, Base. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Isosceles Triangle
Inputs
- Leg: 2
- Base: 3
Using Leg = 2, Base = 3, the calculated result is 0.7227342478.
Sample result: Calculating…
Frequently asked questions
What does the Isosceles Triangle calculate?
Isosceles Triangle Calculator — free online calculator.
Which values should I enter?
Enter Leg, Base using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Height = √(leg²−(base/2)²); Area = ½×base×height; Perimeter = base+2×leg; Base angle = arccos(base/(2×leg)).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.