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Warm-up Problems Name polygon A by its number of sides. 2.Name polygon B by its number of sides. Find the perimeter of polygon A. Find the perimeter of polygon B. Classify the polygons as regular or irregular. Lesson 7 Menu. Identify three-dimensional figures.

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Lesson 7 Menu

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Lesson 7 menu

Warm-up Problems

  • Name polygon A by its

    number of sides.

    2.Name polygon B by its

    number of sides.

  • Find the perimeter of polygon A.

  • Find the perimeter of polygon B.

  • Classify the polygons as regular or irregular.

Lesson 7 Menu


Lesson 7 mi vocab

  • Identify three-dimensional figures.

  • Find surface area and volume.

  • polyhedron

  • regular prism

  • pyramid

  • regular polyhedron

  • Platonic solids

  • cylinder

  • cone

  • sphere

  • surface area

  • volume

  • face

  • edges

  • prism

  • bases

  • vertex

Lesson 7 MI/Vocab


Lesson 7 ex1

Identify Solids

A.Identify the solid. Name the bases, faces, edges, and vertices.

Lesson 7 Ex1


Lesson 7 ex11

Answer:rectangular prism;Bases: rectangles EFHG, ABDCFaces: rectangles FBDH, EACG, GCDH, EFAB, EFGH, ABCD

Vertices:A, B, C, D, E, F, G, H

Identify Solids

The bases are rectangles. This solid is a rectangular prism.

Lesson 7 Ex1


Lesson 7 ex12

Identify Solids

B.Identify the solid. Name the bases, faces, edges, and vertices.

Lesson 7 Ex1


Lesson 7 ex13

Answer: hexagonal prism;Bases:hexagon EFGHIJ and hexagon KLMNOPFaces:rectangles EFLK, FGML, GHMN, HNOI, IOPJ, JPKE

Vertices:K, L, M, N, O, P, E, F, G, H, I, J

Identify Solids

The bases are hexagons. This solid is a hexagonal prism.

Lesson 7 Ex1


Lesson 7 ex14

Identify Solids

C.Identify the solid. Name the bases, faces, edges, and vertices.

Lesson 7 Ex1


Lesson 7 ex15

Identify Solids

The base is a circle and there is one vertex. So, it is a cone.

Answer:Base: circle TVertex:Wno faces or edges

Lesson 7 Ex1


Lesson 7 cyp1

Identify the solid.

  • A

  • B

  • C

  • D

A.triangular pyramid

B.pentagonal prism

C.rectangluar prism

D.square pyramid

Lesson 7 CYP1


Lesson 7 kc1

Lesson 7 KC1


Lesson 7 ex2

π

π

π

π

π

.

cm2

.

Surface Area and Volume

A.Find the surface area of the cone.

Answer: The cone has a surface area of 75.4 cm2.

Lesson 7 Ex2


Lesson 7 ex21

π

π

.

π

.

cm3

Surface Area and Volume

B. Find the volume of the cone.

Answer: The cone has a volume of 37.7 cm3.

Lesson 7 Ex2


Lesson 7 ex3

Surface Area and Volume

The amount of material used to make the tube would be equivalent to the surface area of the cylinder.

Lesson 7 Ex3


Lesson 7 ex31

.

Surface Area and Volume

Answer: Mike needs about 405 square inches of cardboard for each tube.

Lesson 7 Ex3


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