Hello, fring!

A rectangle ABCD is cut into eight squares as shown on the pix.

Find the perimeter of the rectangle ABCD

if the perimeter of the smallest square is 24cm Code:

(1)
a ↓ b
o - - - - - - - - - - - - - o - - - - - - - o
| | |
| | |
| | |
| |b |b
a| | |
| | |
| | 6 c |
| o - o - - - - - o ← (2)
| 6| |6 |
(4) → o - - - o - - - o - - - o - o - o |
| | | | | | c
d| | | | |d |
| | | | | |
o - - - o - - - o - - - o - - - o - - - - - o
d d d d ↑ c
(3)

At (1) we see that: .

At (2) we see that: .

At (3) we see that: .

. . Hence: . [1]

At (4) we see that: . [2]

Equate [1] and [2]: .

Now you can determine and the perimeter of the rectangle.