This Grade 3 math worksheet challenges students to solve word problems involving various geometric shapes like heptagons and octagons.

Here are the solutions to the word problems on the worksheet:

1. 7 sides
(A heptagon always has 7 sides.)

2. Triangle
(A shape with 3 sides is a triangle, and its angles always add up to 180°.)

3. Square
(A poster with 4 equal-length sides is most likely a square — assuming it also has right angles, which is typical for posters.)

4. 6 sides
(A hexagon always has 6 sides.)

5. 8 sides
(An octagon always has 8 sides.)

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Final Answer:
1. 7
2. Triangle
3. Square
4. 6
5. 8