If you are able to answer this question—how many centimeters is the wingspan of this butterfly? Well, we take the ruler and we line it up with the butterfly and let us count, 1 cm., 2 cm., 3 cm., 4 cm., 5 cm., 6 cm., 7 cm.—that will look like it is quite it is a half, so your answer would be 7.5 cm.
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