A triangular trough has its ends vertical equilateral triangles 60cm on each side. The open top has dimensions of 60 cm by 12 cm. Find the volume of water in cubic meter inside the trough if it is filled half its depth.

Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).