Question

length of the diagonal of a cube whose edge is 4.5 cm

Answer 1

let h= diagonal. and sides be one base and other perpendicular. then by applying Pythagoras formula we can find out the answer that is
b^2+p^2=h^2
h=√h^2+b^2.
h=(4.5)^2+(4.5)^2 or by applying √3a formula.
where a= side.

Answer 2

here is ur ans. ........