Question

how does the surface area of cube change if its edge is halved. explain..please.

Answer 1

Answer:

decrease in surface area will be 75%

9a² / 2

Step-by-step explanation:

total surface = 6a²

after the sides are halved then

side = a/2

new surface area = 6(a/2)²

=>  6a²/4 => 3a²/2

change = 6a² - 3a²/2 = (12a² -  3a²)/2

=> 9a²/2

percentage = 9a²/2  /  6a²  * 100

=> 9a² / 12a² * 100

=> 9/12 * 100

=> 3/4  * 100

=> 3 * 25

=> 75%

Answer 2

14.How does the surface area of a cube change when its edge is halved?

1 point

1:4

8:1

4:1