The area of the triangle whose vertices are A(1, 2), B(-2, 3) and C(-3, -4) is 1 point (a) 11 (b) 22 (c) 33 (d) 21
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Area of triangle=1/2l 1 2 1
-2 3 1
-3 -4. 1 l. =1/2[ 1(3+4)-2(-2+3)+1(8+9)]
=1/2(7-2+17)
=1/2(22)
=11
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