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In the coordinate plane, A = (-4,4), B = (0,7), and C = (2,-2).  What is the area of triangle ABC?

 Nov 29, 2020
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In the coordinate plane, A = (-4,4), B = (0,7), and C = (2,-2).  What is the area of triangle ABC?

 

Hello Guest!

 

\(\color{blue}◬ABC=◬BOA+◬BOC\\ =\frac{7\cdot 4}{2}+\frac{7\cdot2}{2} \)

\(=21\)

 

The area of triangle ABC is 21.

laugh  !

 Nov 29, 2020

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