Question

Raj made a cuboid of plasticine 2hose length ,breadth and height of the cuboid are 15 cm 30cm , 15cm respectively how many such cuboid will he need to make a prefect cube

Answer 1

i did it in writing

its just rotated

Answer 2

Answer:

4cuboid is required

Step-by-step explanation:

THE SIDE OF THE CUBOID ARE 15CM,30CM AND 15CM

VOLUME OF THE CUBOID=15*30*15=6750

PRIME FACTORISATION

6750=2*3*3*3*5*5*5

HERE 2CANNOT BE GROUPED INTO TRIPLETS OF EQUAL FACTORS

SO WE WILL MULTIPLY 6750 BY (2*2)=4TO GET A PERFECT CUBE

HENCE 4CUBOID IS NEEDED TO MAKE A PERFECT CUBE