Ah, the toposheet measurements! I used to think converting with the RF was enough, ashi... but I found maps aren't always flat on the page, and my paper would shrink or stretch. You must practice on the *actual* printed sheet, not just the textbook example. My big mistake was not buying a good rolling ruler; I tried with a school scale and my old, shaky hands, and my area calculations for the watershed were all off by the exam. Theko, don't be like me—get the proper tools and measure on the map you'll be given.
#exams#study
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