ISEE/SSAT Vocabulary BuilderWordsTtriangle
ISEE/SSATeasy
triangle
Meaning: flat shape with three straight sides and three angles
triangle in a sentence
How triangle is used in real sentences:
Carpenters often nail a wooden triangle beneath the shelf to stop it from wobbling.
While sketching the sailboat, the young artist added a simple triangle for the sail, using three straight lines meeting at sharp points.
“Eli trimmed each corner into a triangle, but one slipped under his sleeve and made everyone search until he raised his arm.”
— from the passage Stitches Before Saturday
Synonyms for triangle
Other words for triangle — trigon and trilateral — carry the same meaning.
- trigon
- trilateral
Where it comes from
From Latin tri- 'three' plus angulus 'angle'
Word parts
- tri, ter — three
triangle: tri- (three) + angle (corner)
Memory hook
TRI (three) + ANGLE — a triangle has three angles.