Without experience that would help you recognize it right away, I think you would just need to try numbers until you find it.
Pick a number, multiply it by itself with pencil and paper, and see if it works.
(2)² = 4 too small (3)² = 9 too small, and not growing fast enough; this could take all day (10)² = 100 still too small (15)² = 225 oops, too big; go back down (12)² = 144 too small (14)² = 196 too big (13)² = 169 just right; hope the bears don't come back too soon
The square root of 169 is 13, as it is the number that, when multiplied by itself, equals 169. You can find it by recalling perfect squares and checking. Multiplying 13 by itself confirms this is correct.
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Jawaban:Saraf yang menyalurkan impuls untuk mengontrol ukuran pupil mata adalah saraf okulomotor (nervus okulomotorius), khususnya serabut parasimpatisnya. Serabut ini berasal dari nukleus Edinger-Westphal dan berjalan melalui saraf okulomotor untuk menstimulasi otot sfingter pupil, menyebabkan pupil mengecil (miosis). Otot radial iris yang menyebabkan pelebaran pupil (midriasis) dikontrol oleh sistem saraf simpatis.