maths - shapes
posted by janey .
Can you name these quadrilaterals?
a) All sides are the same length, opposite sides are parallel, angles are not 90 degrees.
b) Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel.
c) The diagonals bisect each other, but are different lengths. The diagonals do not meet at right angles. The angles are not right angles.
What shape am I?
This shape has 12 edges. It is a polyhedron. Each face is a triangle.