Question 301466
L=(W+8-4)
W=W-4
V=LWH
256=(W+8-4)(W-4)2
256=(W+4)(W-4)*2
256=(W^2-16)2
256=2W^2-32
2W^2=32+256
2W^2=288
W^2=288/2
W^2=144
W=SQRT144
W=12 cm. ANS. FOR THE ORIGINAL WIDTH.
L=12+8=20 cm. ANS. FOR THE ORIGINAL LENGTH.
BASE=W-4=12-4=8 cm NEW WIDTH.
BASE=L-4=20-4=16 cm NEW LENGTH.
PROOF:
256=(12+8-4)(12-4)2
256=16*8*2
256=256
256=256