19. Compare the areas of the two shaded parts (1) and (2) in the figure.
Translate the text above into English, please retain the line breaks and format of the source text, and output the translation result directly.
19. Compare the areas of the two shaded parts (1) and (2) in the figure.
Translate the text above into English, please retain the line breaks and format of the source text, and output the translation result directly.
Answer: The same size