Homework Help. , please!!!!!!!?

Question

Find The Volume of a trough 5 meters long whose ends are equilateral triangles, each of whose sides has a length of 2 meters

Answer 1

Volume always equals area of base * height

The base is the equilateral triangle, so find the area of that.  If each side is 2 meters and each angle is 60 degrees, then the area is 5*sqrt(3).

Now just multiply by the height:

5*sqrt(3)   *   5

The volume is 25sqrt(3)

Answer 2

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