Find the area of a triangle ABC such that a = 16cm, b = 14cm, c = 12cm, leave your answer in surd form
-
A.
5(sqrt{15})cm2 -
B.
7(sqrt{15})cm2 -
C.
21(sqrt{3})cm2 -
D.
21(sqrt{5})cm2 -
E.
21(sqrt{15})cm2
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