Answer the following:
(i) How many dimensions a solid has?
(ii) How many books are there in Euclid's Elements?
(iii) Write the numbers of faces of a cube and cuboid?
(iv) What is sum of interior angles of a triangle?
(v) Write three un-defined terms of geometry?

Answer

(i) 3 (ii) 13 (iii) 6 (iv) `180^(@)` (v) Point, Plane, Line