Help me it's about solutions of triangles about:
-sine rule
-cosine rule
-area of triangles

Area of the triangle covered by the cars = 910.45 square km

Step-by-step explanation:

Since, all the sides of triangle ABC are given,

And formula for the area of a triangle with all sides given is,

Area =

Here, s =

And a, b, c are the measures of the sides of the triangle.

If a = 39 km, b = 87 km and c = 58 km

s =

s = 92

Therefore, (s - a) = 92 - 39

                            = 53

(s - b) = 92 - 87

         = 5

(s - c) = 92 - 58

         = 34

Now area of the triangle ABC =

                                                  =

                                                  = 910.45 km²

Area of the triangle covered by the cars = 910.45 square km

answer: apothems is your answer

step-by-step explanation: hope u get it right