The answer depends on the relative sizes of these shapes.
1 method is to multiply length times the width and the 2 method is to divide the rectangle into triangles and find the area of one of the triangles and multiply the area by two.
In 3d a hexagonal pyramid. In 2d, two hexagons. Or a six-pointed star (like a Star of David), a parallelogram plus lots more possibilities
A prism.
Its an Cylinder
Almost any 2D/3D shape has more than one vertex. Triangles, squares, rectangles etc. etc.
circle based rectangle
A Triangular Pyramid has 4 triangles and 1 square.
a hexagon * * * * * Depending on the shape and sizes of the triangles and where they are attached, you can also get a kite, a rectangle, a parallelogram, a decagon, octagon, pentagon.
The answer would be i think a rectangular pyramid. Not sure tho.
if u are talking about polygons then u would get a hexagon
there are 4 triangles and 1 rectangle in an rectangular pyramid
You get two congruent right triangles when you divide a rectangle diagonally. (This is one way to show that the area of each of those triangles is 1/2*base*height. Rectangle area = (4 in)(8 in) = 32 in2. Triangle area = (1/2)(4 in)(8 in) = 16 in2.)
A pyramid.
A rectangular-based pyramid.
That is one type of pyramid.
If the 2 triangles are right triangles, which are congruent to slicing the rectangle on the diagonal, then arrange one on top of the rectangle, and the other to the side, so that the two hypotenuses are in line with each other. This will make a bigger right triangle, which is similar to the smaller right triangles - each side is double of the smaller triangles.