there is 7 hexagons in the design
They have 6
None.
how many vertices does 3 hexagons and 8 rectangles have all together
One hexagon has six sides, so 100 hexagons have 600 sides.
20 hexagons
4 hexagons; A hexagon has 6 sides, thus, if you have 4 hexagons, 4x6=24
there is 7 hexagons in the design
None. Though there can be ten if the hexagons are concave hexagons.
6
They have 6
None.
6
how many vertices does 3 hexagons and 8 rectangles have all together
One hexagon has six sides, so 100 hexagons have 600 sides.
15
twelve