Question

a graph shows the first triangle in a wallpaper pattern. the coordinates are a (-4, -8), b (-7, 4), and c (6, 5). how can the distance formula be used to find the side lengths and classify the triangle? the side lengths are 3√17, √170, and √269, so this is a scalene triangle. the side lengths are 3√17, √170, and √269, so this is an isosceles triangle. the side lengths are √137, √82, and √13, so this is a scalene triangle. the side lengths are √137, √82, and √13, so this is an isosceles triangle.

Explanation:

Answer:

The side lengths are $3\sqrt{17}$, $\sqrt{170}$, and $\sqrt{269}$, so this is a scalene triangle.