Flashcards on I Poliedri e le sue Proprietà

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What is a polyhedron?

A solid figure with flat faces and straight edges.

How many faces does a cube have?

A cube has 6 faces.

What is the formula to find the sum of the interior angles of a polyhedron?

The sum of the interior angles of a polyhedron is given by the formula (2n - 4) * 90 degrees, where n is the number of faces.

What is an edge?

An edge is the line segment formed by the intersection of two faces of a polyhedron.

Which polyhedron has exactly 5 faces, 8 edges, and 5 vertices?

A pentagonal pyramid.

What is a vertex?

A vertex is a corner where three or more faces of a polyhedron meet.

Which polyhedron has exactly 12 faces, 20 vertices, and 30 edges?

An icosahedron.

How many edges does a triangular prism have?

A triangular prism has 9 edges.

What is the relationship between the number of vertices, edges, and faces of a polyhedron?

The relationship is given by the formula V + F = E + 2, where V is the number of vertices, F is the number of faces, and E is the number of edges.

How many vertices does a dodecahedron have?

A dodecahedron has 20 vertices.

Which polyhedron has exactly 8 faces, 12 edges, and 6 vertices?

A cube.

What is a regular polyhedron?

A regular polyhedron is a polyhedron whose faces are congruent regular polygons and whose polyhedral angles are all congruent.

How many faces does a tetrahedron have?

A tetrahedron has 4 faces.

What is an isosceles triangle?

An isosceles triangle is a triangle that has two sides of equal length.

What is the relationship between the number of faces and vertices of a convex polyhedron?

The relationship is given by the formula F + V = 2, where F is the number of faces and V is the number of vertices.

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Test Your Knowledge


What is a polyhedron?



How many faces does a cube have?



What is an edge?



Which polyhedron has exactly 5 faces, 8 edges, and 5 vertices?



What is a vertex?



How many edges does a triangular prism have?



Which polyhedron has exactly 12 faces, 20 vertices, and 30 edges?



How many vertices does a dodecahedron have?



What is a regular polyhedron?



What is an isosceles triangle?



What is the relationship between the number of faces and vertices of a convex polyhedron?




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