One triangle = 3 so 4 traingles = 4*3 = 12
One dodecagon = 12 so 4 of them = 4*12 = 48
Total = 12+48 = 60
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A dodecagon has 12 sides, and a quadrilateral has 4. So in 2 dodecagons and 4 quadrilaterals there are 2*12 + 4*4 = 24 + 16 = 40 sides altogether.
3*12 + 1*7 = 36+7 = 43 sides.
1*9 + 3*3 + 4*10 + 3*12 = 9 + 9 + 40 + 34 = 92
A dodecagon has 12 sides, and a pentagon has 5 sides. So 5 dodecagons have 5*12 = 60 sides, and 4 pentagons have 4 * 5 = 20 sides, for a total of 60 + 20 = 80 sides.
They have 12 sides