3D Shapes

Front

What is a 3D shape?

Back

A 3D shape, or three-dimensional shape, is an object that has depth, width, and height. Examples include cubes, spheres, and pyramids.

Front

Name the properties of a cube.

Back

A cube has 6 square faces, 12 edges, and 8 vertices. All faces are equal in size and shape.

Front

What is the difference between a prism and a pyramid?

Back

A prism has two parallel bases that are congruent, while a pyramid has one base and triangular faces that converge at a single point (the apex).

Front

How do you calculate the volume of a cylinder?

Back

The volume of a cylinder is calculated using the formula V = πr²h, where r is the radius of the base and h is the height.

Front

What is the surface area of a sphere?

Back

The surface area of a sphere is calculated using the formula A = 4πr², where r is the radius.

Front

Define a tetrahedron.

Back

A tetrahedron is a type of polyhedron that has four triangular faces, six edges, and four vertices.

Front

What is the relationship between the radius and diameter of a circle?

Back

The diameter of a circle is twice the length of the radius. The formula is d = 2r.

Front

How do you find the volume of a cone?

Back

The volume of a cone is calculated using the formula V = (1/3)πr²h, where r is the radius of the base and h is the height.

Front

What is a net in relation to 3D shapes?

Back

A net is a two-dimensional representation of a 3D shape that can be folded to form the shape. It shows all the faces of the shape.

Front

Explain the concept of congruence in 3D shapes.

Back

Congruence in 3D shapes means that two shapes are identical in shape and size, allowing for rotation and reflection.