Difference between revisions of "2023 AMC 12A Problems/Problem 11"
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Revision as of 20:20, 9 November 2023
Problem
What is the degree measure of the acute angle formed by lines with slopes and
?
Solution 1
Remind that where
is the angle between the slope and
-axis.
,
. The angle formed by the two lines is
.
. Therefore,
.
~plasta
See also
2023 AMC 12A (Problems • Answer Key • Resources) | |
Preceded by Problem 10 |
Followed by Problem 12 |
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 12 Problems and Solutions |
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