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# triangular

«triangular» in Mova's school dictionary: **shaped like a triangle, with three sides and three corners** — its meaning for a pupil, its sense in the lessons and examples, with 2 sentences of Mova's corpora that use it.

### part of speech

adjective (triangular)

### meaning for a pupil

1) Triangular means shaped like a triangle, with three sides and three corners. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#m1)

2) A triangular number is a number of dots that can make a triangle: 1, 3, 6, 10, 15 … [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#m2)

### sense in the lessons

a shape with 3 sides: perimeter is the sum of the 3 sides; in maths: triangular prisms and pyramids, triangular numbers; in everyday life: triangular road signs (warnings), sandwiches cut into triangles, a triangular flag

### examples

- A triangular garden has sides 5, 6 and 7 m. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x1)
- Find the perimeter of the triangular field. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x2)
- A triangular flag. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x3)
- How many corners has a triangular piece? [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x4)
- Warning road signs are triangular. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x5)
- She cut the sandwiches into triangular halves. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x6)
- A triangular prism has 2 triangular faces. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x7)
- 1, 3, 6 and 10 are triangular numbers. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x8)
- He had two triangular pieces of tile in his head, instead of eyes; his mouth was made of an old broken rake, and was, of course, furnished with teeth. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/#x9)

### note

Hidden fact: a triangle has 3 sides and 3 corners. Perimeter = sum of the three sides. Triangular numbers grow by 2, 3, 4 … each time. A triangular prism has 5 faces, 9 edges and 6 vertices.

### In the corpora

- [The Portuguese and Spanish used caravels, small fast ships with triangular lateen sails that could sail closer to the wind.](https://md.mova.elamur.ai/free/en/corpora/school/geography/33-castile-portugal-and-the-first-sea-empires/8/)
- [In the UK, circular road signs give orders, triangular signs warn and rectangular signs give information.](https://md.mova.elamur.ai/free/en/corpora/school/technology/43-olympiad-transport-building-and-energy/9/)

### Trees and pragmatics

[Every meaning and example of «triangular» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/triangular/), each sentence with its dependency tree and frames.