original length -- x
original width --- y
original height -- z
new length ---- x
new width ----- y/7
new height --- z/7
original SA = 2xy + 2xz + 2yz
new SA = 2x(y/7) + 2x(z/7) + 2(y/7)(z/7)
simplify to whatever version you need
If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find the modified surface area?
1 answer