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Seventh Grade Geometry Unit 5 CROSS SECTIONS

Seventh Grade Geometry Unit 5 CROSS SECTIONS. Warm Up. -2n + 5 -4n – 8 -7 Solve for c: -4c + 5 = 25 3) 4). -6n -10. c = -5. 12 ft ³. 90 gallons. Cross section – the plane figure (2d) that you get when you slice a 3d figure.

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Seventh Grade Geometry Unit 5 CROSS SECTIONS

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  1. Seventh GradeGeometry Unit 5CROSS SECTIONS

  2. Warm Up • -2n + 5 -4n – 8 -7 • Solve for c: -4c + 5 = 25 3) 4) -6n -10 c = -5 12 ft³ 90 gallons

  3. Cross section – the plane figure (2d) that you get when you slice a 3d figure.

  4. Name the 2d shape resulting from each cross section below. (Parallel to the base) (Perpendicular to the base)

  5. 1. 2. 3. Rectangle Circle Triangle

  6. 1. 3. 2. Triangle Triangle Rectangle 4. 5. 6. Square Parabola Triangle 7. Describe the shape resulting from a vertical, horizontal, and angled cross section of the basketball below. Circle

  7. Describe the vertical, horizontal, and angled cross section of the figure below.

  8. pyramid is

  9. Closing What is a cross section?

  10. Homework

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