Find the klares of triangle whose vertices are (5,2) , (4,7) and (7,-4)
Answers
Answered by
1
Answer:
the area is -2
Step-by-step explanation:
Answered by
3
Answer:
-2 square units
Step-by-step explanation:
area if triangle=1/2(x¹+(y²-y³)+x²(y³-y¹)+x³(y¹-y²))
=1/2(5(7-(-4))+4(-4-2)+7(2-7))
=1/2(5(11)+4(-6)+7(-5))
=1/2(55-24-35)
=1/2(-4)
=-2 square units
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