triangle

From Wiktionary

[change] Pronunciation

•  Audio (US)^{help, file}

[change] Noun

Singular triangle

Plural triangles

1. A shape that has three sides and three angles.
2. (music) An instrument that is made out of metal and is shaped like a triangle.

An equilateral triangle (all sides and angles are equal)

A right triangle (one angle measures 90°)

A scalene triangle (all 3 sides and angles are different)

A triangle (musical instrument)

[change] Related words

• acute triangle
• Bermuda Triangle
• Devil's Triangle
• equilateral triangle
• isosceles triangle
• love triangle
• obtuse triangle
• right triangle
• scalene triangle

This short article needs someone to make it better. You can help Wiktionary by adding to it.