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Find AB. Round to the nearest tenth if necessary.

12
18
Image:www(dot)connexus(dot)com/content/media/869971-7182013-102907-AM-2050975799(dot)jpg

1 answer

By the Pythagorean Theorem, AB = sqrt(12^2 + 18^2) = sqrt(468) = 21.6 (rounded to the nearest tenth).

Therefore, AB is about 21.6 units long.