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Q. Arrange the given steps in correct order to find the length of the longest diagonal of a cuboid of dimensions $3 cm \times 2 cm \times 4 cm$.
(A) Longestdiagonal of acuboid $=\sqrt{l^2+b^2+h^2}$
(B) Let $l=3, b=2$, and $h=4$
(C) Required diagonal length $=\sqrt{29} cm$
(D) Diagonal of the cuboid $=\sqrt{3^2+2^2+4^2}$

Mensuration

Solution:

BADC is the required sequential order.