Q:

does anyone know the answer to this question?please help me

Accepted Solution

A:
--------------------------------------------------
Define x :
--------------------------------------------------
Width = x
Length = x + 8

--------------------------------------------------
Solve x :
--------------------------------------------------
Given that the perimeter is 90:
*listing from the top lefthand corner, clockwise
(x) + (x + 8) + (x) + (8) + (x+8) + (x) + (x+8) + (x) + (8) + (x+8) = 90
8x + 48 = 90
8x = 42
x = 5.25

--------------------------------------------------
Find Length and Width :
--------------------------------------------------
Width = x = 5.25 cm
Length = 5.25 + 8 = 13.25 cm

--------------------------------------------------
Find Area :
--------------------------------------------------
4 rectangles = 5.25 x 13.25  x 4 = 278.25 cm²

--------------------------------------------------
Answer: Area = 278.25 cm²
--------------------------------------------------