Word by Word Definitions

: having two equal sides — see triangle illustration

: having the two nonparallel sides equal

: a polygon having three sides — compare spherical triangle

: a percussion instrument consisting of a rod of steel bent into the form of a triangle open at one angle and sounded by striking with a small metal rod

: a drafting instrument consisting of a thin flat rightangled triangle of wood or plastic with acute angles of 45 degrees or of 30 degrees and 60 degrees
ISOSCELES TRIANGLE Defined for Kids
isosceles triangle
Definition of isosceles triangle for Students
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