I am in 5th grade
3x
a polyhedron * * * * * That is only if it is bounded by plane faces. A sphere, for example, is a three dimensional shape but is not a polyhedron: it is a solid shape.
142 * * * * * What?! A hexagon is a polygon - a closed plane shape - which is bounded by six straight lines. The name comes from the Greek prefix hex- for six.
It could be an arrowhead or a kite.
Cartesian product is the name that refers to the set of the ordered pairs. The Cartesian product of two sets A and B is AB.
I am in 5th grade
3x
a polyhedron * * * * * That is only if it is bounded by plane faces. A sphere, for example, is a three dimensional shape but is not a polyhedron: it is a solid shape.
parallelogram
A parallelogram or kite.
142 * * * * * What?! A hexagon is a polygon - a closed plane shape - which is bounded by six straight lines. The name comes from the Greek prefix hex- for six.
It is a shape which has two pairs of PARALLEL sides. Parallel sides - parallelogram. Get it?
It could be an arrowhead or a kite.
a parallelogram, maybe?
There are lots of different quadrilaterals that do not have two pairs of parallel sides: a kite, arrowhead, trapezium, and a shape which has no specific name.
Not necessarily. A quadrangle is a plane shape bounded by 4 straight sides. The name says nothing at all about the lengths of the sides.