cubes A , B ,C having edges 18 cm , 24 cm and 30 cm respectivly are melted and moulded into a new cube D. find the edge of the bigger cube D.
Answers
Answered by
1
Answer:
216
Step-by-step explanation:
edge of 1st cube=18 cm
edge of 2nd cube=24 cm
edge of 3rd cube=30 cm
now,they are melted an made into one cube,so the 4th cube formed is the sum of the other three cubes:
18 cube+24 cube+30 cube= 4th cube
volume of cube =edge³
(5832+13824+27000)cm
=46656 cm is the volume
then the edge = ∛46656
=216
Similar questions