What is the area of isoceles ∆

1.	What is the area of isoceles ∆
Answer» (√3\\4)a^2 1/2 b.h We also use Heron\'s furmula S=A+B+C/2a=√a(s-a)(s-b)(s-c)Where S=semi peeimeter 1/2×base×height 1/2×base×height a/4√4a2-b2

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