A cuboid made of metal has dimensions 27 cm× 18 cm 12 × cm. It is melted and recast into small cubes of edge 6 cm in length. How many cubes are made assuming that there is no wastage.
Answers
Answer:
mark it as brainlest answer please
Step-by-step explanation:
Given, 12
3
=b
3
+8
3
+a
3
(volume remains the same)
a
3
=12
3
−6
3
−8
3
a
3
=1728−216−512
a
3
=1000
a=10
Edge of the cube = 10 cm.
Answer:
11.39
Step-by-step explanation:
Given : A cuboid made of metal has dimensions 27 cm × 18 cm × 12 cm. It is melted and recast it into small cubes of Edge 8 cm in length.
Asked to find : How many cubes are made assuming that there is no wastage.
A cuboid made of metal has dimensions 27 cm × 18 cm × 12 cm.
volume of the cuboid is V= l+b+h
∴ => 27*18*12
HENCE , => 5832 cm²
Ve=5832 cm
It is melted and recast it into small cubes of Edge 8 cm in length.
The volume of the cube is V = a³
Vc =8³
Ve = 512 cm³
The number of cubes TO BE made is given by,
Number of cubes = VOLUME OF CUBOID/VOLUME OF CUBE
5832
n = --------
512
n = 11.39