Triangle
Summary
A triangle is a polygon with three vertices and three sides. Its three vertices are points that do not lie on one line, and its sides are the segments that join them in pairs.
What this node needs for W2
- edge instance_of in: at least two examples (0 of 2)
- edge not_instance_of in: at least one non-example (0 of 1)
- edge specializes both: the more general notions and the special cases (0 of 1)
The writing levels say how complete the text of a node is. They do not measure its truth.
What depends on this
20 nodes use this node, directly or through other nodes.
- Similar triangles 01PNAVFMYZ
- Isosceles triangle theorem 056VS31A0J
- Angle sum of a triangle 05MDKQBEAF
- Law of cosines 060ZVZBV3E
- Area of a triangle 065JWMZW86
- Menelaus's theorem 07NSKDGS7S
- Angle bisector theorem 0859R2V6ES
- Heron's formula 0FRBZ2X4HJ
- Nine-point circle 0J768YF1ZE
- Ceva's theorem 0KN93VDSXA
- Exterior angle theorem 0NTSE7EREA
- Angle-angle similarity 0NZVJYZVTZ
- Law of sines 0PASQ34GHG
- Orthocentre 0QMYQ1X03H
- Circumcentre 0TP2QKJ8DE
- Incentre 0TWPTQ0AD7
- Pythagorean theorem 0VP3A1290K
- Congruent triangles 0X3TEM69AA
- Altitude of a triangle 0X89GC65N1
- Median of a triangle 0ZET0ZH16W
Sources
- Web https://en.wikipedia.org/wiki/Triangle, lead section
What links here
Used by
- Similar triangles 01PNAVFMYZ
- Isosceles triangle theorem 056VS31A0J
- Angle sum of a triangle 05MDKQBEAF
- Law of cosines 060ZVZBV3E
- Area of a triangle 065JWMZW86
- Menelaus's theorem 07NSKDGS7S
- Angle bisector theorem 0859R2V6ES
- Heron's formula 0FRBZ2X4HJ
- Nine-point circle 0J768YF1ZE
- Ceva's theorem 0KN93VDSXA
- Exterior angle theorem 0NTSE7EREA
- Law of sines 0PASQ34GHG
- Orthocentre 0QMYQ1X03H
- Circumcentre 0TP2QKJ8DE
- Incentre 0TWPTQ0AD7
- Pythagorean theorem 0VP3A1290K
- Congruent triangles 0X3TEM69AA
- Altitude of a triangle 0X89GC65N1
- Median of a triangle 0ZET0ZH16W
Definitions
- Triangle 0JDB8YJBSR