isosceles,regular polygon
isosceles triangle. b = c ab = ac
convertible body of tetrahedra of isosceles and right angle
isosceles-right-triangle
05 isosceles triangle sky blue
total internal reflection全内反射 prisms棱镜 right isosceles
- regular polygon
- obtuse
- nickle
- obtuse triangle
- reflex angle
- diagonal
- semiotics
- regular triangle
- cyclic quadrilateral
- collinear
- diagonals
- scalene triangle
- vertice
- equilateral triangle
- dodecahedron
- dimes
- isosceles trapezoid
- semicircle
- divisible
- trapezium
- trigonometry
- quadrilateral
- polygon
- isosceles triangle
- vertices
- acute angle
- perimeter
- rhombus
- equilateral
- vertex