what is the answer? does anyone like maths because I don't?

Answer:
8 cm
Step-by-step explanation:
Th smaller rectangle is a scaled down version of the bigger rectangle. The smaller rectangle is 1/2 the size of the large one.
So we will multiply 4 by 2 to get 8 cm
Your correct answer is 8 cm :)
Hope this helps!
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Have a great day!!
Answer:
the ratio of rectangle 1 the same with rectangle 2 so as you see in the photo the area of rectangle 2 equal 4×2 which we find it obviously of similar ratio