Shapes and Geometric Mean

What shape has 4 equal sides and 4 right angles?

• Pentagon

• Square

• Triangle

• Circle

Which of the following is a 3D shape: circle, cube, triangle?

• cube

• triangle

• circle

• square

Describe the difference between a 2D shape and a 3D shape.

• 2D shapes have more sides than 3D shapes.

• 3D shapes are always symmetrical, while 2D shapes are not.

• 2D shapes are only found in nature, while 3D shapes are man-made.

• 3D shapes have depth in addition to length and width.

How many faces does a cylinder have?

• 4

• 8

• 6

• 2

Identify the 2D shape that has 3 sides.

• Triangle

• Square

• Circle

• Pentagon

Compare a square and a rectangle in terms of their sides and angles.

• Rectangle has all sides of equal length and all angles of 90 degrees.

• Square has all sides of equal length and all angles of 90 degrees.

• Rectangle has all sides of different lengths and all angles of 90 degrees.

• Square has all sides of equal length and all angles of 45 degrees.

Name a 3D shape that has all its faces as triangles.

• Sphere

• Cube

• Tetrahedron

• Cylinder

What is the geometric mean of 4 and 9?

• 6

• 5

• 3

• 13

Identify a 2D shape that has no straight sides.

• Circle

• Triangle

• Rectangle

• Square

Explain the difference between a cone and a sphere.

• A cone has a circular base and a pointed top, while a sphere is a perfectly round three-dimensional object.

• A cone has a square base and a pointed top, while a sphere is a flat two-dimensional object.

• A cone is a flat two-dimensional object, while a sphere is a perfectly round three-dimensional object.

• A cone is a perfectly round three-dimensional object, while a sphere has a circular base and a pointed top.