Platonic Solids

What is the name of the platonic solid?

• icosahedron

• dodecahedron

• octahedron

• tetrahedron

A platonic solid has the same number of faces meeting at each vertex.

• True

• False

How many faces does the Tetrahedron have?

How many faces does the octahedron have?

The total surface area of the dodecahedron shown is 240 cm². What is the area of just one face of the solid?

• 24 cm²

• 12 cm²

• 20 cm²

• 15 cm²

The octahedron has 8 faces, and each face has an area of 15 in². What is the total surface area of the solid?

Enter a number only.

The Icosahedron has 20 congruent triangular faces. The base of each triangle is 6 cm and the height of each triangle is 5.2 cm. What is the total surface area of the Icosahedron? Enter a number only.

How many faces does the cube have?

The area of each face of the tetrahedron is 15 cm^2. What is the surface area of the tetrahedron?

• 60 cm²

• 19 cm²

• 45 cm²

• 225 cm²

What do we call this object below?

• Net

• Hopscotch

• Geometry

• Intersection