author={Maureen T. Carroll},
  journal={Mathematics Magazine},
  pages={296 - 297}
• Use a scale or scale factor to find a measurement. • Find actual lengths and areas from a scale drawing, using a scale factor. • Create multiple scale drawings from the original model or drawing, using different scales. Related Standards: Current Course Related Standards: Future Courses 7.RP.1 unit rates; 7.RP.2 proportional reasoning 8.EE.6, 8.G.3, 8.G.4, SII.G.SRT.1 (7.G.1 lays foundation for dilations in 8.G and SII.G.SRT) 
The geometric division of space : frameworks for design analysts
This research aims to explore the persistence of geometric constructions and focuses on related issues such as proportions in the visual arts, design and architecture in both historical and modernExpand
The Smallest Shape Spaces. I. Shape Theory Posed, with Example of 3 Points on the Line
This series of papers concerns shapes in the sense of constellations of points with various automorphisms quotiented out: the continuous translations, rotations and dilations, and also the discreteExpand
Drawing Graphs on Few Circles and Few Spheres
It turns out that spherical covers are sometimes significantly smaller than affine covers, and this paper introduces the spherical cover number, which is the minimum number of circles that together cover a crossing-free circular-arc drawing in 2D (or 3D). Expand
Using Art and Technology to support Geometry Learning for All: A Conceptual Instructional Design
The dynamic design of GeoArt-ID is based upon a framework where the synergy of multiple knowledge, i.e., Technological, Didactical, Content (TDCK) knowledge is involved, and can exhibit high adaptability, scaffolding mentally disabled students to perform geometrical thinking and reasoning for all. Expand
Quadrilaterals in Shape Theory. II. Alternative Derivations of Shape Space: Successes and Limitations
We show that the recent derivation that triangleland's topology and geometry is $S^2$ from Heron's formula does not extend to quadrilaterals by considering Brahmagupta, Bretschneider and Coolidge'sExpand
Extracts from my Notebooks
§1. Chauhan quadrilaterals? Our house is being renovated these days. Our architect, Sandeep, has designed its new lounge as a non-rectangular quadrilateral. I noticed that, while calculating theExpand
Elasticity in curved topographies: Exact theories and linear approximations.
This paper presents a formulation of elasticity theory in curved geometries that unifies its underlying geometric and topological content with the theory of defects and investigates the universality of nonlinear elasticity. Expand
Geometry of exact transverse line fields and projective billiards
1.1. Start with a description of the (usual) billiard transformation. A billiard table is a convex domain in R bounded by a smooth closed hypersurface M . The billiard transformation acts on the setExpand
On Minimum Distance Problem
This study provides a clear-cut solution to a minimum distance problem, in particular, the problem of finding the minimum distance from a point to a line to another point on the same side of theExpand
Some Metric Properties of Semi-Regular Equilateral Nonagons
A simple polygon that either has equal all sides or all interior angles is called a semi-regular nonagon. In terms of this definition, we can distinguish between two types of semi-regular polygons:Expand


2: Tangents, Arcs, and Chords 19. Glossary and Credits 10
  • Special Angles Type
5 Solve real-life and mathematical problems involving angle mea-sure, area, surface area, and volume
    6) and find unknown side lengths (8.G.7) Academic Vocabulary leg, hypotenuse, Pythagorean Theorem, square, square root Resources Curriculum Resources
    • • Explore the Pythagorean Theorem
    Alternate Exam -Form A* (*) Indicates alternative assignment
      Alternate Exam -Form A* 2. Exam 4. Alternate Exam -Form B* Geometry Unit 13: Final Exam Assignments 1. Final Exam 3. Alternate Exam -Form B*
        Angle Relationships and Parallels 11
        • Review: Units
        Apply the Pythagorean Theorem to find the distance between two points in a coordinate system
        • Concepts and Skills to Master • Calculate the distance between two points in a coordinate system using the Pythagorean Theorem. Related Standards: Current Course Related Standards: Future Courses
        Area of Parallelograms 17. Solids: Cylinders
          Area of Triangles and Rhombuses 18. Solids: Cones
            Circles: Area of Sectors 26. Alternate Test* 13. Circles: Area of Segments 27. Glossary and Credits 14. Quiz 2: Area of Circles Geometry Unit 9: Coordinate Geometry Assignments 1
            • Area Comparisons of Polygons 21. Construction: Dividing a Segment 8. Quiz 1: Area of Polygons 22. Construction: 4th Proportion 9