Question

find the area of a triangle whose verticas are (1, -1) (-4, 6) and (-3, -5) ​

Answer 1

Answer:

í think (3,-3) (-12,2) and (-9,-15)

Answer 2

Step-by-step explanation:

Area = 1/2 [x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2)]

$= \frac{1}{2} |1(6 - ( - 5) + - 4( - 5 - ( - 1)) + ( - 3( - 1 - ( - 6)))| \\ = \frac{1}{2} |(1 \times 11) + ( - 4 \times - 4) + ( - 3 \times 5)| \\ = \frac{1}{2} |11 + 16 - 15| \\ = \frac{1}{2} |27 - 15| \\ = \frac{1}{2} \times 12 \\ = 6$

therefore the area of triangle is = 6 cm²

Hope you get your answer