WAJ 3105 LITERASI NOMBOR BIJAK RUANG Spatial Sense Download lecture slides at: sub/ln Dr. Lee Wai Heng & Dr. Ng Kok Fu 1 Bentuk-bentuk 2D Sekitar Kita

Segitiga (triangle) Segiempat tepat (rectangle) Segiempat sama (square) Bulatan (circle) dan banyak lagi 2 Pepejal-pepejal 3D Sekitar Kita

Kuib/kuboid cube/ cuboids Prisma prisms Piramid pyramid Selinder cylinder Kon cone Hemisfera hemisphere Sfera sphere 3

ISL minggu ini Dalam kumpulan kecil, kenalpasti dan kumpulkan contoh-contoh bentuk 2D dan pepejal 3D yang wujud di dalam persekitaran kita Persembahkan hasil koleksi dalam kelas tutorial anda 4 Exploring 2D & 3D Shapes ks2/maths/3d/index.htm 5 Polygon (special 2D shapes) A polygon is a closed figure in a plane whose sides are formed by 3 or more straight lines 6 Names of Polygon

triangle or trigon heptagon (7 sides) octagon (8 sides) nonagon / enneagon (3 sides)

quadrilateral or tetragon (4 sides) (9 sides) pentagon (5 sides) hexagon (6 sides) decagon (10 sides) 7

Names of Polygon 1 monogon 2 digon 3 trigon, triangle 4 tetragon, quadrilateral 5 pentagon 6 hexagon 7 heptagon 8 octagon 9 enneagon 20 icosagon 21 icosikaihenagon, icosihenagon 22 icosikaidigon 23 icosikaitrigon 24 icosikaitetragon

25 icosikaipentagon 10 decagon 11 hendecagon 12 dodecagon 13 triskaidecagon 14 tetrakaidecagon, tetradecagon 15 pentakaidecagon, pentadecagon 16 hexakaidecagon, hexadecagon 17 heptakaidecagon 18 octakaidecagon 19 enneakaidecagon 26 icosikaihexagon 27 icosikaiheptagon 28 icosikaioctagon 29 icosikaienneagon

40 41 42 43 44 45 46 47 48 49 tetracontagon tetracontakai tetracontakai tetracontakai tetracontakai

tetracontakai tetracontakai tetracontakai tetracontakai tetracontakai 50 60 70 80 90 100 1000 10000 pentacontago hexacontago

heptacontago octacontagon enneacontag hectogon, he chiliagon myriagon 30 triacontagon 31 triacontakaihenagon 32 triacontakaidigon 8 3D Solids Solids are 3-dimensional figures which

are made up of flat or curved surfaces. Solids are classified in terms of their various properties. number and shape of faces number of vertices number of edges 9 Exploring 3D Solids Properties 10

Mystery in Mathematics Euler's formula states, the number of faces (F) and vertices (V) added together is exactly two more than the number of edges (E) This can be written as F+V-E=2 or F + V - 2 = E. 11

Testing Eulers Formula 12 2D Shapes from 3D Solids Explore 2D faces from prisms at: 13 Nets of Polyhedron In geometry, the net of a polyhedron (solid with flat faces and straight edges) is an

arrangement of edge-joined polygons in the plane which can be folded (along edges) to become the faces of the polyhedron 14 3D Solids from Nets 15 Practical Task: Constructing a pull-up cube Source: The Maths Coordinator's File - issue 21

16 TUTORIAL 4.1 17

Recently Viewed Presentations

  • Context-based Criticism

    Context-based Criticism

    CULTURAL CRITICISM Began in the 1960s and called attention to the issues involving Asian, Latino, Chicano, and African-American literary experience that is not taken into account by traditional critical methods.
  • History of the Periodic Table - Copley

    History of the Periodic Table - Copley

    He rearranged the periodic table by this number and it fell into perfect order ... Lanthanide Series Top row on the bottom two. ... 2- chemical symbol . 3- atomic mass. Al. 13. 26.981539. Metals vs. Nonmetals. Use the .
  • Presentation to the Parliamentary Sports Committee

    Presentation to the Parliamentary Sports Committee

    Presentation to the Parliamentary Sports Committee Charles K Smith Gary Dolley 17 September 2002 Cape Town Executive Board Structure Charles K Smith President Sheila Brown Vice-President Steve Jaspan Marketing & Sponsorship Bobby Gagel Treasurer Shaune Baaitjies Transformation Gary Dolley Development...

    Steve Rybolt. Environmental Management Specialist. Marco Milanese. Community Relations Manager. April 14, 2015. Purpose. Present an optimal solution to a complex "true-to-life" environmental problem.
  • Shifts in Verb Voice, Tense, Person, and Number

    Shifts in Verb Voice, Tense, Person, and Number

    Shifts in Verb Voice, Tense, Person, and Number created by: Eric Zellers Ilona Carlon-Plitt Ilona Eric! Unnecessary Shifts in Sentences = Awkward Changes in Subject and Verb Forms Shift in Subject Notes Within a sentence a shift is a change...
  • Proposed WAC 296-305 Changes and the Impacts to

    Proposed WAC 296-305 Changes and the Impacts to

    Personal Protective Equipment and Protective Clothing WAC 296-305-02001. The fire department shall inform members of the hazards of fabrics that melt, drip, burn, stick to the skin and cause burns to the wearer due to poor thermal stability or poor...
  • The role of mantle plumes in the Earth's

    The role of mantle plumes in the Earth's

    Equal mass flux hypothesis: Over time, slabs transport as much mass into the lower mantle as plumes return to the upper mantle. There is no other mass flux through the 670 discontinuity * Input amplitude was -2.4% for z<600 km,...
  • Lumber


    Shrinkage around the circumference of the log (tangential shrinkage) is about half again greater than radial shrinkage. Surfacing Purpose to make it smooth and more dimensional precise - easier to work with - less damaging to hands - square and...