Don't understand this at all and show your working will choose the best person to be the brainliest

40 cm

Step-by-step explanation:

Since the figures are similar then the ratios of corresponding sides are equal, that is

= , simplifying gives

4 =

Multiply both sides by (x + 2)

4(x + 2) = 48 ( divide both sides by 4 )

x + 2 = 12 ( subtract 2 from both sides )

x = 10

Hence

width = 4x = 4 × 10 = 40

ratio is 2 : 9

the answer is three

13.5 : 3