# Using determinant

Given: – Vertices are (– 3, 5), (3, – 6) and (7, 2)

Tip: – If vertices of a triangle are (x1,y1), (x2,y2) and (x3,y3), then the area of the triangle is given by: Now,

Substituting given value in above formula Expanding along R1    Δ = 46 sq. units

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