Surface area 2

Calculate how many % reduce the surface area of the cube is reduced the length of each edge by 10%.

Correct answer:

p =  19 %

Step-by-step explanation:

q=100%10%=110010=0.9 S1 = a2 S2 = (q a)2 = q2 a2 = q2 S1  p = 100   S1 S1  S2  p = 100   S1 S1  q2 S1  p=100 11q2=100 111092=19%



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Do you want to convert length units?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: