8.
If each edge of a cube is quadrupled.
(i) how many times will its surface area increase?
(ii) how many times will its volume increase?
Answers
Answered by
3
Answer:
1. 24 times
2. 4 times
Step-by-step explanation:
srface area of cube=6a square
if edge is quadrupled I. e. 4 times
new area=24
volume=a cube
new volume=4a cube
Answered by
9
Answer:
surface area of cube =6a²
If it is quadrupled = 6 (4a) ²
6×16 a²
96a²
no. of time increased =96a²/6a² =16 times
volume of a cube = a³
if it is quadrupled = (4a)³
64a³
no. of times increased = 64a³/a³=64 times
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