Perimeter of a Triangle with Vertices Calculator

Your details

x-coordinate of vertex A
y-coordinate of vertex A
x-coordinate of vertex B
y-coordinate of vertex B
x-coordinate of vertex C
y-coordinate of vertex C
PerimeterAcute Isosceles
14.434

Total distance around the triangle (sum of all three sides)

Area10
Side AB5
Side BC4.717
Side CA4.717
Angle A57.99°
Angle B57.99°
Angle C64.01°
Type (sides)Isosceles
Type (angles)Acute
Side AB5
Side BC4.717
Side CA4.717

Perimeter = 14.4340 units, Area = 10.0000 sq units

  • Side lengths are 5.0000, 4.7170, and 4.7170 units. The longest side is 5.0000 and the shortest is 4.7170.
  • Interior angles are 57.99°, 57.99°, and 64.01° (sum: 180.00°).
  • Two sides are equal length, so this is an isosceles triangle. The two base angles opposite the equal sides are also equal.

Next stepYou can use the area and perimeter together to compute the inradius (r = 2 * Area / Perimeter) or circumradius for further geometric analysis.

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