3 Dimensional Solids Terms-Mrs. Mele Geometry Honors

15 terms by erubes358 Plus

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http://quizlet.com/12226146/surface-area-and-volume-formulas-of-3d-solids-flash-cards/ for formulas

Prism

Has 2 bases that must be congruent or parallel, 1 height which is the distance from base to base, named according to shape of bases, faces are rectangles.

Cylinder

A special prism with 2 circular bases.

Pyramid

Has 1 base, 2 heights (slant height- l; and height of solid-h), named according to shape of base.

Cone

A circular based pyramid.

Nets

An unfolded, two-dimensional pattern of a 3D solid.

Platonic Solid

A 3D solid where every face is congruent.

Tetrahedron

A platonic solid consisting of 4 congruent triangular sides.

Cube

A platonic solid consisting of 6 congruent square sides.

Octahedron

A platonic solid with 8 congruent triangles.

Dodecahedron

A platonic solid with 12 congruent pentagonal sides.

Isohedron

A platonic solid with 20 congruent triangular sides.

Lateral Area

Sum of area of the entire solid except for the base(s).

Total Surface Area

Sum of the area of all of the faces.

Measurements: Surface Area vs. Volume

SA: units²
Volume: units³

What is the top part of a hemisphere called?

The Great Circle

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