triangular
part of speech
adjective (triangular)
meaning for a pupil
1) Triangular means shaped like a triangle, with three sides and three corners. tree →
2) A triangular number is a number of dots that can make a triangle: 1, 3, 6, 10, 15 … tree →
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
- arranged in a triangular form and the sphere of void encompassing them was symbolized by a circle. (Mordell, The Origin of Letters and Numerals according to Sefer Yetzirah (1914)) tree →
- A triangular garden has sides 5, 6 and 7 m. tree →
- Find the perimeter of the triangular field. tree →
- A triangular flag. tree →
- How many corners has a triangular piece? tree →
- Warning road signs are triangular. tree →
- She cut the sandwiches into triangular halves. tree →
- A triangular prism has 2 triangular faces. tree →
- 1, 3, 6 and 10 are triangular numbers. tree →
- 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 →
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.
- In the UK, circular road signs give orders, triangular signs warn and rectangular signs give information.
Trees and pragmatics
Every meaning and example of «triangular» parsed by Mova, each sentence with its dependency tree and frames.