How many things are used in icosahedrons?
a) six
b) seven
c) eight
d) nine
How many faces and edges in icosahedrons?
a) 21 faces, 32 edges
b) 22 faces, 23 edges
c) 45edges, 50 faces
d) 20 faces, 32 edges
What types of used in origami modular ninja star?
a) printing paper
b) nonprinting paper
c) both
d) none of these
