# fnVertexAngle ( sides ; base )

Calculate the angle the vertex of an isosceles triangle.

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Michael George Michael George Consulting |

Sample input:

fnVertexAngle ( sides ; base )

15 , 13

100 , 160

250 , 250

15 , 13

100 , 160

250 , 250

Sample output:

51.3585772389

106.2602047083

60

106.2602047083

60

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Use to calculate the angle of the vertex of an isosceles triangle if the lengths of the sides and base are already known. Output is in degrees, truncated at 10 decimal place of precision. No output if the base length is not less than the side lengths * 2 (otherwise it would be a line, not a triangle.)

## Comments

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.