Write the name of the triangle in the diagram! There are three lattices (divided by angles); there are three lattices (divided by edges, with a triangle written in the first lattice)

Write the name of the triangle in the diagram! There are three lattices (divided by angles); there are three lattices (divided by edges, with a triangle written in the first lattice)

Acute triangle, right triangle, obtuse triangle
Triangle, isosceles triangle, equilateral triangle