A quadrilateral has four sides, and so four quadrilaterals will have a total of 16 sides counted separately.
All quadrilaterals have 4 sides
Quadrilaterals are polygons with four sides. Triangles are polygons with three sides.
16
In common with all quadrilaterals it has 4 sides
A rectangle is a quadrilateral. As such, it shares the distinguishing characteristic of quadrilaterals with all other quadrilaterals, and has four (4) sides.
15
It belongs in the class of quadrilaterals that all have 4 sides
7 quadrilaterals = 7 x 4 = 28 sides 8 hexagons = 8 x 6 = 48 sides Total is 76 sides
A rectangle like all other quadrilaterals has 4 sides
A parallelogram like all other quadrilaterals has 4 sides
4 sides, because a trapezoid is a quadrilateral and quadrilaterals ALWAYS have 4 sides