Given: A triangle ABC with sides AB=4cm, BC=6cm and AC=8cm
Required: To find out the area of the given triangle.
Explanation: Area of the triangle by Heron's formula is given by,

where, a,b,c are the sides of triangle and s is the semi-perimeter given by,

Now, let a=4, b=6 and c=8. Hence the semi perimeter s is-


Now, putting these values of s, a, b, and c in Heron's formula we get,




Final Answer: Area of triangle is 11.61 sq cm.