Surface area conjectures

Maths

A statement which we think is true but is not yet proven

What is the best mathematical definition of a conjecture?

What is the surface area of this 1cm unit cube?

Two 1cm unit cubes have been combined to form the solid shape below. What is the surface area?

The pattern is continued so that we have 3 unit cubes stuck together as a stick. What is the surface area?

The pattern is continued so that we have 13 unit cubes stuck together as a stick. Which calculation successfully works out the surface area?

Area and surface area  have the same units

Area and surface area always have different units

This shape was made with 1 centimetre unit cubes. What is the surface area of this shape?

What is the maximum surface area of combining 10 of these 1cm unit cubes together?