The volume of a cube is 1.331 cm 3 . Find the length of its edge. If the length of edge is doubled , by how many times will the volume increase?
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35
Volume = 1.331 cm^3
or, a^3 = 1.331
a = cube root of 1.331
= 1.1 cm
Therefore, edge = 1.1 cm
If the length of edge is doubled ,
edge = 2*1.1
= 2.2 cm
Then, volume = 2.2*2.2*2.2 = 10.642 cm^3
Therefore, volume has increased 10.648/1.331 = 8 times.
or, a^3 = 1.331
a = cube root of 1.331
= 1.1 cm
Therefore, edge = 1.1 cm
If the length of edge is doubled ,
edge = 2*1.1
= 2.2 cm
Then, volume = 2.2*2.2*2.2 = 10.642 cm^3
Therefore, volume has increased 10.648/1.331 = 8 times.
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7
Answer:
8 times
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