l Equilateral Triangle side = 15
Enter side length

Given an equilateral triangle with side (a) equal to 15

Calculate the other relevant items in this triangle

Calculate Perimeter:

P = 3a

P = 3 x 15

P = 45

Calculate Semiperimeter s:

s  =  P
  2

s  =  45
  2

s = 22.5

Calculate Area (A):

A  =  a23
  4

A  =  1523
  4

A  =  225√3
  4

A  =  389.711431703
  4

A = 97.427857925749

Calculate Bisector

ha-ma-ta  =  a√3
  2

ha-ma-ta  =  25.980762113533
  2

ha-ma-ta = 12.990381056767

Calc. Circumscribed Circle Radius

R  =  a√3
  3

R  =  25.980762113533
  3

R = 8.6602540378444

Calculate Inscribed Circle Radius

r  =  a√3
  6

r  =  25.980762113533
  6

r = 4.3301270189222


P = 45
s = 22.5
A = 15