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ECAT Mathematics QUESTION #786
Question 1
Area of \(\triangle\) in terms of sides is equal to:
  • \(S(s-a)(s-b)(s-c)\)
  • \(\sqrt{S(s-a)(s-b)(s-c)}\)✔️
  • \(S(s+a)(s+b)(s+c)\)
  • None
Correct Answer Explanation
By Heron's formula: Area \(= \sqrt{s(s-a)(s-b)(s-c)}\), where \(s = \dfrac{a+b+c}{2}\).