(1) Find the area, if the triangle whose vertices are
the points (3,4), (5,7) and (-2,-3).
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Step-by-step explanation:
Eq for findig the area of a triangle is
= 1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]
= 1/2[3(7-(-3))+5(-3-4)+(-2)(4-7)]
=1/2[3×10+5×-7+-2×-3]
=1/2[30-35+6]
=1/2[1]
=0.5 sq units
HOPE THIS WILL HELP YOU
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