Quadrilaterals on a 3x3 Geoboard

Q1

Find all noncongruent quadrilaterals that can be formed on a 3x3 Geoboard. How many can you find?

Classify your shapes into the following groups. Use the corresponding geoboard letter when listing them.

Convex quadrilaterals:

Concave quadrilaterals:

Trapezoid (by the traditional definition or trapezoid that is not a parallelogram):

Parallelograms that are not rectangles:

Rectangles that are not squares:

Square: