Two-Dimensional Cross Sections Of Three-Dimensional Objects
Muhtasari
Slice through a solid and the flat shape you reveal is its cross section. Spin a flat shape around an axis and you sweep out a solid. These two ideas link two-dimensional shapes and three-dimensional objects in both directions.
In this lesson you will identify the two-dimensional cross sections of three-dimensional objects, and the solids generated by rotating two-dimensional shapes about an axis.
Malengo
- Identify the two-dimensional cross sections of three-dimensional objects and the solids generated by rotating two-dimensional shapes.
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Tathmini ya Somo
Hongera kwa kukamilisha somo la Two-Dimensional Cross Sections Of Three-Dimensional Objects. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- A horizontal slice through a cylinder gives a: A. rectangle B. circle C. triangle D. square Answer: B
- A vertical slice through the axis of a cylinder gives a: A. circle B. rectangle C. ellipse D. cone Answer: B
- Rotating a rectangle about one side sweeps out a: A. cone B. sphere C. cylinder D. prism Answer: C
- Rotating a semicircle about its diameter sweeps out a: A. cylinder B. cone C. sphere D. circle Answer: C
- Rotating a right triangle about a vertical side sweeps out a: A. cylinder B. cone C. sphere D. pyramid Answer: B
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