A solid cube of side 12 cm is side of the new cube? Also, find the ratio between their surface 9. Ariver 3 m deep and 40 m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute? a
Answers
Answered by
2
Answer:
Given:
Side 12cm
⇒Volume of cube =12×12×12=1728cm
3
⇒Volume of smaller cube
=
8
1
of 1728
=
8
1
×1728=216cm
3
⇒Let side be S.
∴ (S)
3
=216
⇒S=6 cm
Ratio of SA of cubes
=
SA of smaller cube
SA of bigger cube
=(
6
12
)
2
=
1
2
2
=
1
4
∴ Ratio between their surface areas 4:1
Answered by
0
Answer:
Given:
Side 12cm
⇒Volume of cube =12×12×12=1728cm
3
⇒Volume of smaller cube
=
8
1
of 1728
=
8
1
×1728=216cm
3
⇒Let side be S.
∴ (S)
3
=216
⇒S=6 cm
Ratio of SA of cubes
=
SA of smaller cube
SA of bigger cube
=(
6
12
)
2
=
1
2
2
=
1
4
∴ Ratio between their surface areas 4:
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