Answer:
Triangle, pentagon, heptagon, and decagon.
Explanation:
REMEMBER THIS:
DECAGON: 10 SIDES
HEPTAGON: 7 SIDES
PENTAGON: 5 SIDES
TRIANGLE: 3 SIDES
EXTRA INFO:
HEXAGON: 6 SIDES
QUADRILATERAL: 4 SIDES
OCTAGON: 8 SIDES
NONAGON: 9 SIDES
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