Pls help me thank youu, it shouldn't take to long :)) just how do I do it I can't remember

  see attached

Step-by-step explanation:

We cannot really do the construction for you, but we can tell you how it needs to go. The three sides of the triangle will have a length in cm that is equal to the given length in km divided by 20.

  AB = 6 cm

  BC = 8 cm

  AC = 9 cm

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The area each station can be heard will be a circle of radius (100 km)/(20 km) cm = 5 cm. The overlap of those circles is the area you are to shade.

The attached diagram should give you the general idea. (Scale units are cm.)

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Additional comment

It works well to find B as the intersection of arcs of radius 6 cm and 8 cm, drawn from centers A and C, respectively.

can you put the picture up?

step-by-step explanation:

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation: