All triangles have exactly three vertices.
3 vertices in a triangle, whether it is equilateral, isosceles or scalene; acute angled, right or obtuse.
There are 5 triangles in an heptagon
There are infiitely many possible answers. A right angled isosceles triangle is one.There are infiitely many possible answers. A right angled isosceles triangle is one.There are infiitely many possible answers. A right angled isosceles triangle is one.There are infiitely many possible answers. A right angled isosceles triangle is one.
I depends what posision the triangle is in.
one.
One
one
A right triangle has 3 corners, or vertices.
in a right angled triangle there is only 1 right angle
A right angle triangle has no parallel sides
Two.
Infinite