SOLUTION: Show that the triangle whose vertices A(3,6) B(-2,-4) and C(-5,2) is a right angeled triangle. FInd the area of the triangle. Answer in this form (fill in the missing) MCA=1/2

Algebra ->  Average -> SOLUTION: Show that the triangle whose vertices A(3,6) B(-2,-4) and C(-5,2) is a right angeled triangle. FInd the area of the triangle. Answer in this form (fill in the missing) MCA=1/2       Log On


   

Question 824671: Show that the triangle whose vertices A(3,6) B(-2,-4) and C(-5,2) is a right angeled triangle. FInd the area of the triangle.
Answer in this form (fill in the missing)
MCA=1/2 MCB =-2 therefore perpendicular,
Area=_______ units squared
Answer by Alan3354(69443) About Me  (Show Source):
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Show that the triangle whose vertices A(3,6) B(-2,-4) and C(-5,2) is a right angeled [sic] triangle. FInd the area of the triangle.
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Find the slope of AC and BC. If the product of the 2 slopes is -1, they're perpendicular and it's a right triangle. If not, check the slope of AB and see if its slope is the negative inverse of one of the other 2.