A triangle, no matter the type, can never have any parallel sides. To try this out, draw any two parallel lines on a sheet of paper and try to make a triangle out of it.
yes an arrowhead has 4sides because it is a quadrilateral but it doesn't have any parallel sides
It has two pairs of parallel sides (4).
No a kite has got no parallel sides
Yes and a trapezium is also known as a trapezoid in the US
None.
2
A trapezoid has only 1 pair of opposite parallel sides of different lengths.
No.
One pair.
No it doesn't
no....it got 2 acute angles though