May get help I am terribly bad at these equations.

Question

asked Feb 15, 2023 111k views

1 Answer

UldisK · Answer 1 · 2023-02-19T20:05:58+0000

The distance Rhea travelled is the perimeter around the triangle.

The first step in finding the perimeter is finding the side lengths and for that, the following distance formula is used.

$d=\sqrt[]{(x_1-x_2)^2+(y_1-y_2)^2}$

where (x_1, y_1) and (x_2, y_2) are the coordinates of the two points.

The distance between L(-1,6) and M(-4,2) is

$d=\sqrt[]{(_{}-1--4)^2+(6_{}-2_{})^2}$
d=5

Similarly, the distance between L(-1,6) and K(2,2) is

And the distance between M(-4, 2) and L(2,2) is

Therefore, the perimeter of the triangle is

Hence, Rhea travelled 16 km.