numbers and algebraic expressions
logic, sets, intervals
function and its properties
limits of sequences and functions
derivative and integral of functions
elements of statistics
a - edge of cube. The cube has 6 faces, 12 edges, 8 vertices. The cube is prism which all faces are squares. Angles in a cube. Space diagonal: d = a√3, Volume: V = a^3, Surface: S = 6a^2.