Question

the length,breadth and the height of a room are 8 metre 25 CM, 6 M 75 cm and 450 CM respectively find the length of the longest rod that can measure the three dimensions of the room exactly

Answer 1

simply

diagonals of a cuboid = √l^2+b^2+h^2

Answer 2

length = 8m 25cm =825cm
breath = 6m 75cm = 675cm
height = 450cm
HCF of 825, 675 and 450= 75
the length of longest rod that can measure the three dimensions of the room exactly is 75cm