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Learning Goal
Part of: Draw, construct, and describe geometrical figures and describe the relationships between them — 3 of 3 cluster items
Describe the two-dimensional figures that result from slicing three-dimensional figures
7.G.A.3
7.G.A.3 — Describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids.
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7.G.A.3 — Describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids.
What you'll learn
- Define a cross-section as the 2D figure formed when a plane intersects a 3D solid
- Identify and name the cross-sections formed by horizontal, vertical, and diagonal plane cuts of a right rectangular prism
- Identify and name the cross-sections formed by horizontal and vertical plane cuts of a right rectangular pyramid
- Predict the cross-section shape of a given cut before visualizing or verifying it
- Explain why the angle and position of the cutting plane determines the shape of the cross-section
Slides
Interactive presentations perfect for visual learners • Interactive presentation
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises