Posts tagged 'isosceles-triangle'

G.13 equilateral, isosceles, and scalene triangles

Of trilateral figures, an equilateral triangle < A B C > has three equal sides, an isosceles triangle < D E F > has two equal sides, and a scalene triangle < G H K > has three unequal sides.

G.25 base angles of an isosceles triangle

In an isosceles triangle, the angles at the base are equal, and if the equal sides are extended, the angles under the base are equal.

G.162 construct a golden isosceles triangle

Construct an isosceles triangle having each of the angles at the base double the remaining angle.