The area of the triangle whose vertices are A(1,2) B(-2,3) and C(-3,-4) is
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Answered by
4
Answer:
p1,p2,p3 are the altitude of a triangle from the vertices A,B,C
Answered by
15
Step-by-step explanation:
=1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]
=1/2[1(3+4)-2(-4-1)-3(2-3)]
=1/2[7+12+3]
=1/2[22]
11 sq.unit
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