Decagon to Multiple Decagons Dissections

Author : Gavin Theobald

2×{10}	Two decagons
3×{10}	Three decagons
4×{10}	Four decagons
5×{10}	Five decagons

×2

×3

×4

×5

×6

×7

×8

×9

×10

×11

×12

×13

×14

×15

×16

16

23

10

17

Decagon - 2 x Decagon

Decagon — 2 × Decagon (16 pieces)

Decagon - 3 x Decagon

Decagon — 3 × Decagon (23 pieces)

Decagon - 4 x Decagon

Decagon — 4 × Decagon (10 pieces)

Discovered by Ernest Irving Freese.

The dissection is translational.

Decagon - 5 x Decagon

Decagon — 5 × Decagon (17 pieces)

Discovered by Greg Frederickson.