Mathematics, 09.06.2020 20:57, fireman59937
Triangle ABC has vertices at A(-4, -2), B(1, 7) and C(8, -2)
A) Determine the exact value of the area of Triangle ABC.
B) Determine the perimeter of Triangle ABC to the nearest tenth.
Answers: 2
![\frac{1}{2}[x_{1}(y_{2}-y_{3})+x_{2}(y_{3}-y_{1})+x_{3}(y_{1}-y_{2})]](/tpl/images/0680/9936/85381.png)
(Absolute value)![\frac{1}{2}[(-4)(7+2)+(1)(-2+2)+8(-2-7)]](/tpl/images/0680/9936/4401b.png)
![\frac{1}{2}[-36+0-72]](/tpl/images/0680/9936/6d705.png)
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Triangle ABC has vertices at A(-4, -2), B(1, 7) and C(8, -2)
A) Determine the exact value of the ar...
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