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Solid Geometry

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Student Expectations

- 7th Grade:
7.3.6C Use properties to classify three-dimensional figures, including pyramids, cones, prisms, and cylinders.

Solid Geometry is the geometry of three-dimensional space

It is called three-dimensional, or 3D because there are three dimensions: width, depth and height.

Three DimensionsA geometric object with flat faces and straight edges.

a polyhedron is a three - dimensional figure made up of sides called faces, each face being a polygon.

PolyhedronThe lowest part. The surface that a solid object stands on, or the bottom line of a shape such as a triangle or rectangle.

BaseA solid object that has two identical ends and all flat sides.

The cross section is the same all along its length.

The shape of the ends give the prism a name, such as "triangular prism“

It is a polyhedron.

PrismA solid object where: sides.* The base is a polygon (a straight-sided shape)* The sides are triangles which meet at the top (the apex).It is a polyhedron.

PyramidA cylinder is a solid object with: sides.* two identical flat circular or elliptical ends* and one curved side.

CylinderPrisms & Pyramids sides.