isosceles triangle
Geometry's twin-legged figure
An isosceles triangle has exactly two sides of equal length, with the angles opposite those sides also equal.
The term distinguishes it from equilateral triangles (all sides equal) and scalene triangles (no sides equal): The roof formed an isosceles triangle against the sky.
- vertexPoint where edges converge
- baseSupporting bottom structure
- symmetryInvariance under transformation
- angle bisectorLine splitting a corner equally
- sidesLateral edges or teams
legs · trigon · geometry · shape · equal sides · circumcircle · tent · roof truss · paper airplane · geometric proofs · similarity · Euclidean geometry · bisector · congruence · acute · protractor · math homework · pyramid
isosceles trianglescalene triangle
Three-sided figure, all unequal
scalene · equilateral triangle · equilateral · regular polygon
triangle, triangles, isosceles, trilateral, trigonometry, trigonometric, right triangle, equilateral triangle, scalene triangle