plzz solve with explanation
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Area of ∆ = 1/2[y1(x2-x3)²+y2(x3-x1)²+y3(x1-x2)]
putting all values we get,
Area = 1/2[3*1 + 0 + 2*9]
= 1/2[ 3+18]
= 21/2 cm² (Ans)
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