Question

use the questions below to keep track of key concepts from this lessons study activity. 1) practice: organizing information fill in the blanks to complete the definition list. platonic solids • __ special polyhedrons • all faces are . • all faces are polygons. • same number of faces meet at each . 2) practice: summarizing in your own words, briefly explain why these solids are called platonic. 3) practice: organizing information list the three polygon faces that make all platonic solids. 1. 2. 3. __ 4) practice: activating prior knowledge and making mental images

Explanation:

1. Platonic solids are 5 special polyhedrons. Their faces are congruent (identical in shape and size), regular (all sides and angles equal), and the same number of faces meet at each vertex. The three polygon - faces that make up Platonic solids are equilateral triangles, squares, and regular pentagons. They are called Platonic because Plato associated them with the elements and used them in his philosophical discussions about the nature of the universe.

Answer:

1)

• 5
• congruent
• regular
• vertex

1. Plato associated them with the elements and used them in his philosophical discussions about the nature of the universe.

3)

1. equilateral triangles
2. squares
3. regular pentagons