Which one are trapezoids? [select al that are true]

The 1st, 2nd, and the 3rd picture give the picture of three different trapezoid.

Step-by-step explanation:

The trapezoid is defined as to be a closed figure having four sides whose two opposite sides are parallel to each other.

So, the 1st, 2nd, and the 3rd picture give a picture of three different trapezoids.

The 1st diagram is Acute trapezoid.

The 2nd diagram is Obtuse trapezoid.

The 3rd diagram is Isosceles trapezoid as it has two non-parallel sides equal.

The 4th diagram is not a trapezoid as it has more than 4 sides. (Answer)

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

answer: y=0 if that is what u r looking for