Enter side length

Given an equilateral triangle with side (a) equal to 12

Calculate the other relevant items in this triangle

Calculate Perimeter:

P = 3a

P = 3 x 12

P = 36

Calculate Semiperimeter s:

s  =  P
  2

s  =  36
  2

s = 18

Calculate Area (A):

A  =  a23
  4

A  =  1223
  4

A  =  144√3
  4

A  =  249.41531628992
  4

A = 62.35382907248

Calculate Bisector

ha-ma-ta  =  a√3
  2

ha-ma-ta  =  20.784609690827
  2

ha-ma-ta = 10.392304845413

Calc. Circumscribed Circle Radius

R  =  a√3
  3

R  =  20.784609690827
  3

R = 6.9282032302755

Calculate Inscribed Circle Radius

r  =  a√3
  6

r  =  20.784609690827
  6

r = 3.4641016151378


P = 36
s = 18
A = 12