Calculate the area, volume of Traingle (Traingle Calculator)  
 
 
 

Where,
l = length
b =breadth
a,b and c = sides of the triangle
The interior angles of triangle always add up to 180 degrees
The exterior angles of triangle always add up to 360 degrees
There are seven types of triangles:
Isosceles triangle
Equilateral triangle
Scalene triangle
Right angle triangle
Obtuse triangle
Acute triangle
Equiangular
Examples:
Calculate the area of a triangle with the given length as 3 and breadth as 4 cm.
Area = [ l×b /2 ]= (3*4/2) = 12/2 = 6
Calculate the Perimeter of triangle with the given sides as 3, 4 and 5 cm
Perimeter = a+b+c = 3+4+5 = 12
Calculate the area of an equilateral triangle with the given side length as 4 cm
Area = [ (Sqrt (3)/4)×(side)² ] = [ (sqrt(3)/4 *(4)2 ] = 1.73/4 *16 = 0.4325 *16 = 6.92