1 rhombus 4-5 triangles
Depending upon exactly where the cut is made (and the shape/type of the original trapezoid), a trapezoid cut into two pieces [of equal area] can result in: 1: two trapezoids 2: a trapezoid and a parallelogram 3: a trapezoid and a [general] quadrilateral 4: a parallelogram and a triangle 5: two triangles.
The answer depends on the relative sizes of these shapes.
trapezoid
It is not possible to have 1 parallel side since it must be parallel to another side. A four sided shape with 1 PAIR of parallel sides is a trapezium (or trapezoid).
three triangles, and 1 square+2 triangles
1 rhombus 4-5 triangles
No & Yes. Three triangles can: 2 obtuse, and 1 acute.\ Although, 2 cannot!
The answer will depend on the exact shapes of the individual items.
Depending upon exactly where the cut is made (and the shape/type of the original trapezoid), a trapezoid cut into two pieces [of equal area] can result in: 1: two trapezoids 2: a trapezoid and a parallelogram 3: a trapezoid and a [general] quadrilateral 4: a parallelogram and a triangle 5: two triangles.
you can make a square based pyramid using 4 triangles and a 1 square
by 1 parallelogram and a triangle
3 triangles will cover a trapezoid. 2 will be up and 1 will be down, or vise-versa.
The answer depends on the relative sizes of these shapes.
a trapezoid
A trapezoid
Yes.Each triangle has an area = 1/2 base x height.So the two equal triangles (one upright and the other one upside-down) that fit into the trapezoid will give the trapezoid an area = twice 1/2 base x height = base x height.