Central similarities (TEFC)

United States, 1971

Film
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Episode of Series “Geometry”.
Dilatations (central similarities) are introduced to solve the problem of inscribing an ellipse to touch the sides of a given triangle at their midpoints. Coordinate geometry is also introduced to solve a subsidiary problem stressing the importance of the geometric interpretation of algebraic equations. Narrated by Delbert Ball.

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Collection

In ACMI's collection

Credits

co-director

Allen Downs

Jay Hines

production company

International Film Bureau

Duration

00:10:00:00

Production places
United States
Production dates
1971

Appears in

Geometry

Group of items

Geometry

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Collection metadata

ACMI Identifier

001842

Language

English

Subject categories

Education, Instruction, Teaching & Schools → Mathematics - Study and teaching

Educational & Instructional

Educational & Instructional → Instructional

Mathematics, Science & Technology → Algebra

Mathematics, Science & Technology → Geometry

Mathematics, Science & Technology → Geometry, Descriptive

Mathematics, Science & Technology → Mathematics

Mathematics, Science & Technology → Mathematics - Study and teaching

Short films

Short films → Short films - United States

Sound/audio

Sound

Colour

Colour

Holdings

16mm film; Access Print (Section 1)

Please note: this archive is an ongoing body of work. Sometimes the credit information (director, year etc) isn’t available so these fields may be left blank; we are progressively filling these in with further research.

Cite this work on Wikipedia

If you would like to cite this item, please use the following template: {{cite web |url=https://acmi.net.au/works/65905--central-similarities-tefc/ |title=Central similarities (TEFC) |author=Australian Centre for the Moving Image |access-date=25 April 2024 |publisher=Australian Centre for the Moving Image}}