Structures: Structural Shapes

Which shape listed below is the strongest?

• rectangle

• triangle

• octagon

• parallelogram

Triangles are strong and...

• rigid

• flexible

• unstable

• beautiful!!

A rectangle can be strengthened best by adding a...

• vertical brace

• diagonal brace

• horizontal brace

• knee brace

How many triangles are needed to make a braced rectangle?

• 1

• 2

• 3

• 4

Which shape is stronger than a triangle?

• Rectangle

• Circle

• Octagon

• Arch

Tension is a force that...

• Pulls

• Crushes

• Twists

• Snaps

Compression is a force that...

• Pulls

• Crushes

• Twists

• Snaps

Torsion is a force that...

• Pulls

• Crushes

• Twists

• Snaps

A beam that is exposed to too much force will...

• get stronger

• evolve

• evaporate

• fail