According to Heron's formula, the area, A, of a triangle is given by

A=[s(s-a)(s-b)(s-c)], where a, b, and c are the side lengths of the triangle

and s is one-half the perimeter of the triangle, s-a+b+c. Calculate the

2

area of a triangle with side lengths 6.7 cm, 6.2 cm, and 7.1 cm. Round your

answer to the nearest tenth of a square centimetre. [6 MARKS]