Anet can be folded to form a cube. the numbers on the three faces meeting at any vertex can be multiplied together. what is the smallest such product for the vertices of this cube

Folding this net, we will have this following pair of squares that are facing each other

the square with number 5 will face the square with number 10 = 5×10 = 50
the square with number 7 will face the square with number 6 = 7×6 = 42
the square with number 8 will face the square with number 9 = 8×9 = 72

The smallest product is 42

Lines that intersect at one point