Difference between revisions of "2019 Mock AMC 10B Problems/Problem 14"
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| − | There are five points, and to make a triangle we need 3, so the number of ways is just <math>\binom5 3 | + | There are five points, and to make a triangle we need 3, so the number of ways is just <math>\binom5 3.</math> This is option choice (A). |
- Armpit Splash 💦 | - Armpit Splash 💦 | ||
| + | - Edits by Continuous_Pi | ||
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| + | Note: This solution is wrong because we must consider when a subset of the points are collinear, creating degenerate triangles. | ||
Latest revision as of 13:56, 11 August 2024
Solution 1
There are five points, and to make a triangle we need 3, so the number of ways is just 
This is option choice (A).
- Armpit Splash 💦
- Edits by Continuous_Pi
Note: This solution is wrong because we must consider when a subset of the points are collinear, creating degenerate triangles.
