altitude
altitude of a triangle

Bermuda
Bermuda Triangle

drift
drift triangle

equilateral
equilateral triangle

eternal
the eternal triangle

height
height of a triangle

inside
the inside of a triangle

isosceles
isosceles triangle

obtuse
obtuse triangle

perpendicular
perpendicular of right-angled triangle

plane
plane triangle

produce
to produce the sides of a triangle

rectangle
rectangle triangle

right-angled
a right-angled triangle

suppose
suppose ABC an equilateral triangle

triangle
equilateral triangle

warning
warning triangle