Euler’s formula (V – E + F = 2):

3D Shape Explorer Quiz is an interactive  activity designed to help learners master the properties of common solid figures—such as cubes, rectangular prisms, triangular prisms, and square pyramids—by focusing on the number of edges, faces, vertices, and the application of Euler’s formula (V – E + F = 2).

Each question displays a clear 3D representation of a shape alongside a prompt like “How many edges does this triangular prism have?” or “Verify Euler’s formula for this cube.” Learners select or enter their answers and receive immediate feedback, helping them build spatial reasoning, reinforce counting skills, and gain confidence with foundational geometry concepts.