rhombus
There is 360 degrees in a quadrilateral.
Either a square or a rectangle fit this category.
dot, line , triangle, quadrilteral, pentagon, hexagon, heptagonm, octagon, nonatgon, decagon.
a trapizoid is a quadrilateral bacause it has 4 sides and because QUAD means 4 or one that has for sides and a trapizoid has 4 sides so its a quadrilateral
You know that at least one of them must be acute. A quadrilteral can have three obtuse angles, but not four.