Generally a parallelogram will be split into two scalene triangles by a diagonal; depending upon which diagonal, they will be acute or obtuse.
However, it is possible for the diagonal to be the same length as one of the sides, in which case it will be split into two isosceles triangles.
For the special case of the "regular" parallelogram (whereby every side is equal in length, and it is otherwise known as a Rhombus) it will generally be split into two isosceles triangles, but the diagonal could be the same length as the sides and it will be split into two equilateral triangles.
isosceles triangle
No - a triangle by definition has 3 sides. A parallelogram has 4.
If the heights and bases are the same, then the triangle is half the area of the parallelogram.
They are all polygons.
A trapezoid is not a type of parallelogram. A parallelogram is a type of trapezoid.
No
No, it is not a type of triangle as a triangle is defined as a polygon with three sides and three angles and a parallelogram has four sides and four angles.
Because parallelograms include rhombuses, squares, and rectangles, any triangle would be one of those split in two. If you are thinking about a parallelogram that cannot be classified any more specifically, then it would be a scalene triangle.
isosceles triangle
Right Triangle
it is a right triangle because a rhombus' diagonals are perpendicular
A parallelogram is two triangle together.
I don't know about the relation in the perimeters of a triangle and a parallelogram but if a triangle is on the same base on which the parallelogram is and the triangle is between the same parallel lines of the parallelogram, then the area of the triangle will be half the area of the parallelogram. That is, area of a triangle = 1/2 area of a parallelogram if the triangle is on the same base and between the same parallel lines.
The answer depends on how the parallelogram in the triangle is constructed.
No - a triangle by definition has 3 sides. A parallelogram has 4.
you do it because the triangle is half the size of the parallelogram
No, a triangle is not a a parallelogram