edge= 5 in
the surface area of the given cube.
[tex]s.a = 6 {a}^{2} [/tex]
[tex]s.a = 6 \times {5}^{2} [/tex]
[tex]s.a = 150 \: {in}^{2} [/tex]
hence, the surface area of the given cube is 150 square inches.