Seudónimo Seudónimo

10-03-2018
Mathematics

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The second hand of a clock makes a full revolution once every minute. What is its angle of rotation after 20 seconds? After 45 seconds?

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Vividerla Vividerla

10-03-2018

360/60 = 6

6 degrees every second

6*20 = 120 degrees

120 degrees after 20 seconds

6 * 45 = 270

270 degrees after 45 seconds

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