the area of triangle formed by (-1, 2), (2, -1), (0,0) is
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Answer:
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Answered by
2
Answer:
-3/2 sq units
Step-by-step explanation:
Area
=½[x¹(y²-y³) + x²(y³-y¹) + x³(y¹-y²)]
=½[-1(-1-0)+2(0-2)+0(2-(-1))]
=½[-1(-1)+2(-2)]
=½[1+(-4)]
=½(-3)
= -3/2 sq units
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