A) 18 sq units
B) 24 sq units
C) 48 sq units
D) 96 sq units
Correct Answer: D
Solution :
[d] The area of the triangle formed by vertices A\[\left( 2,-2 \right),\] B \[\left( -\text{ }8,12 \right)\]and C \[\left( -6,-10 \right)\] \[=\frac{1}{2}[2\,(12+10)+(-8)(-10+2)+(-\,6)(-2-12)]\] \[=\frac{1}{2}[44+64+84]\] \[=\frac{1}{2}\times 192=69\] sq units |
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