Enter side length

Given an equilateral triangle with side (a) equal to 5

Calculate the other relevant items in this triangle

Calculate Perimeter:

P = 3a

P = 3 x 5

P = 15

Calculate Semiperimeter s:

s  =  P
  2

s  =  15
  2

s = 7.5

Calculate Area (A):

A  =  a23
  4

A  =  523
  4

A  =  25√3
  4

A  =  43.301270189222
  4

A = 10.825317547305

Calculate Bisector

ha-ma-ta  =  a√3
  2

ha-ma-ta  =  8.6602540378444
  2

ha-ma-ta = 4.3301270189222

Calc. Circumscribed Circle Radius

R  =  a√3
  3

R  =  8.6602540378444
  3

R = 2.8867513459481

Calculate Inscribed Circle Radius

r  =  a√3
  6

r  =  8.6602540378444
  6

r = 1.4433756729741


P = 15
s = 7.5
A = 5