# Write a function that computes the area of a rectangle.

# Then, write a second function that calls this function three times to compute the surface area of a rectangular solid.

# Write code to test this function with different inputs.

# Function to compute the area of a rectangle

def rectangle$\_$area$($length$,$ width$)$:

return length $*$ width

# Function to compute the surface area of a rectangular solid

def rectangular$\_$solid$\_$surface$\_$area$($length$,$ width, height$)$:

# Compute the areas of the three pairs of faces

area$1=$ rectangle$\_$area$($length$,$ width$)$

area$2=$ rectangle$\_$area$($length$,$ height$)$

area$3=$ rectangle$\_$area$($width$,$ height$)$

# Surface area is the sum of the areas of all faces $($each pair counted twice$)$

return $2*($area$1+$ area$2+$ area$3)$

# Test the functions with different inputs

def test$\_$rectangular$\_$solid$\_$surface$\_$area$()$:

test$\_$cases $=[$

$(2,3,4),$ # Example $1$: length$=2,$ width$=3,$ height$=4$

$(5,6,7),$ # Example $2$: length$=5,$ width$=6,$ height$=7$

$(1,1,1),$ # Example $3$: length$=1,$ width$=1,$ height$=1($cube$)$

$(0,5,7),$ # Example $4$: length$=0,$ width$=5,$ height$=7($invalid$,$ should be handled$)$

$(4,5,6),$ # Example $5$: length$=4,$ width$=5,$ height$=6$

$]$

for length, width, height in test$\_$cases:

try:

surface$\_$area $=$ rectangular$\_$solid$\_$surface$\_$area$($length$,$ width, height$)$

print$($f$"$Surface area of rectangular solid with length$=\{$length$\},$ width$=\{$width$\},$ height$=\{$height$\}$ is $\{$surface$\_$area$\}")$

except Exception as e:

print$($f$"$Error computing surface area for dimensions $($length$=\{$length$\},$ width$=\{$width$\},$ height$=\{$height$\})$: $\{$e$\}")$

# Run the test function

test$\_$rectangular$\_$solid$\_$surface$\_$area$()$

not use test$\_$cases