Difference between revisions of "2020 AMC 10B Problems/Problem 13"
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==Solution 1== | ==Solution 1== | ||
− | You can find that every four moves both coordinates decrease by 2. Therefore, both coordinates need to decrease by two 505 times. You subtract, giving you <math>\boxed{\textbf{(B) } \text{(-1020,-990)}}</math> | + | You can find that every four moves both coordinates decrease by 2. Therefore, both coordinates need to decrease by two 505 times. You subtract, giving you the answer of <math>\boxed{\textbf{(B) } \text{(-1020,-990)}}</math> ~happykeeper |
==See Also== | ==See Also== |
Revision as of 20:29, 7 February 2020
Problem
Andy the Ant lives on a coordinate plane and is currently at facing east (that is, in the positive
-direction). Andy moves
unit and then turns
degrees left. From there, Andy moves
units (north) and then turns
degrees left. He then moves
units (west) and again turns
degrees left. Andy continues his progress, increasing his distance each time by
unit and always turning left. What is the location of the point at which Andy makes the
th left turn?
Solution 1
You can find that every four moves both coordinates decrease by 2. Therefore, both coordinates need to decrease by two 505 times. You subtract, giving you the answer of ~happykeeper
See Also
2015 AMC 10B Problem 24 https://artofproblemsolving.com/wiki/index.php/2015_AMC_10B_Problems/Problem_24
Video Solution
~IceMatrix
See Also
2020 AMC 10B (Problems • Answer Key • Resources) | ||
Preceded by Problem 12 |
Followed by Problem 14 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AMC 10 Problems and Solutions |
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