find the area of triangle formed
by point (-10,-4),(-8,-1),(-3,-5)
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0
Answer:
28.5
Step-by-step explanation:
Area= 1/2 [x1 (y2-y3)+x2 (y3-y1)+x3 (y1-y2)]
=1/2[-10 (-1-(-5))+(-8)(-5-(-4))+(-3)(-4-(-1)]
=1/2[-10 (-1+5)+(-8)(-5+4)+(-3)(-4+1)]
=1/2[-10 (+4)+(-8)(-1)+(-3)(-3)]
=1/2[40+8+9]
=1/2[57]
=28.5
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