4. Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 4 cm. How many such
cuboids will he need to form a cube?
Answers
Answer:
20 Cuboids
Step-by-step explanation:
=> Given that,
=> Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm.
=> Now, we have to find l.c.m. of the sides of cuboids to get the side of cube. Then, l.c.m. of 5, 2, 5 = 10.
=>Therefore, each side of the cube will be 10 cm.
=> Now, the volume of the cuboid is = (5*2*5) cubic cm
= 50 cubic cm.
=>And, the volume of the new cube is = (10*10*10) cubic cm
= 1000 cubic cm.
=>Therefore, he need (1000/50) cuboids, i.e., 20 cuboids.
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Answer:
1600 is the answer
Step-by-step explanation:
this is cube root
solution- 5×5×2×2×4×4=1600
why - 5 is not cube root
two more 5= 5×5