Answer:
73 cm (Estimated)
Explanation:
Let's use hero's formula to solve this.
=> 1/2(14 + 11 + 18) = S
=> 1/2(43) = S
=> S = 21.5
√s(s - a)(s - b)(s - c)
=> √21.5(21.5 - 14)(21.5 - 11)(21.5 - 18)
=> √21.5 x 7.5 x 9.5 x 3.5
=> 73.2226911551 = Area of triangle
=> 73 cm² (Estimated)
Hoped this helped.