For Equilateral Triangles
- Consider an equilateral triangle of side 3 cm.
Area= ((sqrt 3)/4) * sq. of side.
Area= (1.732/4) * 9
Area= 3.897 sq.cm.
For Isosceles Triangle
- Consider an isosceles triangle of side AB=2 cm, BC=2 cm, AC=4 cm. Let ‘AB’ be base (b) and ‘BC’ be height (h).
Area= (base * height)/2
Area= (2 * 2)/2
Area= 2 sq.cm.
For Scalene Triangles
- Consider a scalene triangle of side AB=2 cm (a), BC=3 cm (b), AC=4 cm (c).
Area= sqrt (s (s-a) (s-b) (s-c))
Area= sqrt (4.5 (4.5-2) (4.5-3) (4.5-4))
Area= sqrt (4.5 * 2.5 * 1.5* 0.5)
Area= 2.904 sq.cm.
I hope that you understand how to calculate the area of any type of triangles. Please express your opinions.