8th Grade Geometry

What is your Objective?

• Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.
• Know the functions of cones, cylinders, and spheres and use them to solve real-world and methematical problems.
• Develop the topic with relevent, well-chosen facts, definitions, concrete details, quotations, or other information and examples.

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSG.GMD.A.3

What is a Cylinder?

• Central part of a reciprocating engine or pump, and space in which a piston travels.
• Symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares.
• A solid geometric figure with straight parallel sides and a circular, or oval, cross section.

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

What is a Cone?

• A solid or hollow geometric figure  that tapers from a circular or roughly circular base to a point.
• Symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares.
• A solid geometric figure with straight parallel sides and a circular, or oval, cross section.

Tags

CCSS.7.G.B.6

What is a Sphere?

• A round geometric solid, or its surface, with every point on its surface equidistant from its center.
• Symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares.
• A solid geometric figure with straight parallel sides and a circular, or oval, cross section.

Tags

CCSS.7.G.B.6

What is the formula for a cone figure?

• V = ⅓π²rh
• V = ⅓πr²h
• V = l × w × h

Tags

CCSS.7.G.B.6

What is the formula for a Sphere figure?

• V = ⅓πr³
• V = ⅓πr²h
• V = ⁴/₃πr³

Tags

CCSS.8.G.C.9

What is the formula for a Cylinder figure?

• V = ½bhH
• V = πr²h
• V = ⁴/₃πr³

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.GMD.A.3

What is a geometric net?

• A net is the shape that is formed by unfolding a three-dimensional figure. In other words, a net is composed of all of the faces of the figure.
• Free from all charges or deductions: such asa : remaining after the deduction of all charges, outlay, or loss
• They are devices made from fibers woven in a grid-like structure, and are usually meshes formed by knotting a relatively thin thread.

Tags

CCSS.7.G.A.3

CCSS.7.G.B.6

When using a formula for a cone or a cylinder, you'll need to include both __ and __.

• ...rate...width
• ...diameter...heat
• ...radius...height

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.GMD.A.3

What is the volume of a Cylinder with a diameter of four centimeters, and height of six centimeters?

• V = 75.36 cm³
• V = 26 cm³
• V = 12.56 cm³

Tags

CCSS.7.G.B.6