Moons of Mars. The two moons of Mars are Phobos and Deimos. Both moons were discovered in 1877 by Asaph Hall and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology, accompanied their father Ares, god of war, into battle. Ares was known as Mars to the Romans.
A triangular prism is a prism composed of two triangular bases and three rectangular sides. It is a pentahedron. It is implemented in the Wolfram Language as PolyhedronData[TriangularPrism]. The triangular prism has nine distinct nets, as illustrated above.
Given that the length of the rectangular side of the prism is (x + 3) units and the vertical height of the prism is (x + 2) units. Recall that the volume of a prism is given by the area of tehe base times the vertical height. Area of the triangular base = 1/2bh = 1/2(x)(x) = 1/2 x^2. Therefore, the volume of the prism is 1/2 x^2 (x + 2) = 1/2 x^3 + x^2.