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Wiskunde

Graad 8

Heelgetalle, vergelykings en meetkunde

Module 9

Klassifikasie, meet en kostruksie van hoeke

KLASOPDRAG 1

  • Kom ontdek stap vir stap meer omtrent ... Meetkunde ....klassifikasie van hoeke, meet - en konstruksie van hoeke.

1. Hoe konstrueer (teken) jy enige hoekgrootte?

Om dit te kan doen, het jy die volgende nodig:

passer, gradeboog en liniaal

Algemeen: Konstruksie van bv. A B ˆ C size 12{A { hat {B}}C} {} = 60°

  1. Begin deur ’n lyn te trek.

________________________________

  1. Maak ’n merkie op die lyn.

______I________________________

c) Sit jou gradeboog se merkie in die middel op jou merkie.

d) Lees van 0° aan die regterkant tot by die verlangde grade.

e) Benoem jou hoek korrek. [bv. A B ˆ C size 12{A { hat {B}}C} {} = 60° of B ˆ 1 size 12{ { hat {B}} rSub { size 8{1} } } {} = 60° ]

2. Hoe sal jy te werk gaan om ’n hoek van bv. 330° te konstrueer asdie gradeboog slegs hoekgroottes tot en met 180° kan meet?Skryf jou plan hier neer:

3. Konstrueer nou die volgende hoeke, klassifiseer elk en dui die grense van grade aan. Bv. 60° -- skerphoeke (klassifikasie) --- 0°< x <90° (grense van °) Grense van ° word as volg gelees: x groter as 0° en kleiner as 90°

Hoek Skets Klassifikasie(soort hoek) Grense van °
3.1 P Q ˆ R size 12{P { hat {Q}}R} {} = 75°
3.2 A B ˆ C size 12{A { hat {B}}C} {} = 125°
3.3 H F ˆ G size 12{H { hat {F}}G} {} = 325°
3.4 C D ˆ E size 12{C { hat {D}}E} {} = 180°
3.5 K L ˆ M size 12{K { hat {L}}M} {} = 90°
3.6 R S ˆ T size 12{R { hat {S}}T} {} = 360°

HUISWERKOPDRAG 1 en 2

  1. Daar is hoeke oral rondom jou ....Bepaal die grootte van elk van die aangeduide hoeke (m.b.v. jou gradeboog),skryf die grootte by die spesifiek hoek neer enklassifiseer die hoeke.

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

1.10

1.11

1.12

1.13

1.14

1.15

1.16

2. Konstrueer die volgende hoeke deur van jou liniaal en gradeboog gebruik te maak.

2.1 ’n Horlosie met ’n hoek van 45° tussen die twee syfers.

2.2 ’n Sonbed met ’n hoek van 160°

2.3 ’n Helikopter wat teen ’n hoek van 35° met horisontaal daal.

2.4 ’n Leeslamp met hoeke 115° en 65°

Assessering

LU 3
Ruimte en Vorm (Meetkunde)Die leerder is in staat om eienskappe van en verwantskappe tussen twee- dimensionele vorms en drie-dimensionele voorwerpe in ’n verskeidenheid oriënta-sies en posisies te beskryf en voor te stel.
Dit word bewys as die leerder:
3.2 in kontekste insluitend sodaniges wat gebruik word om sosiale-, kulturele- en omgewingsbewustheid aan te kweek, meetkundige figure in terme van kenmerke beskryf en klassifiseer, insluitend:3.2.1 sye, hoeke en diagonale (hoeklyne) en hulle verwantskappe, met die klem op driehoeke en vierhoeke (bv. soorte driehoeke en vierhoeke);3.3 woordeskat gebruik om parallelle te beskryf wat deur ‘n dwarslyn, loodlyne en snylyne gekruis word, asook driehoeke na aanleiding van hoekverwantskappe (bv. vertikaal teenoorstaande, ooreenkomstig).
LU 4
MetingDie leerder is in staat om gepaste meeteenhede, -instrumente en formules in ’n verskeidenheid kontekste te gebruik.
Dit word bewys as die leerder:
4.7 hoeke met behulp van ’n gradeboog akkuraat tot een graad kan skat, vergelyk, meet en teken.

Memorandum

KLASWERKOPDRAG 1

2. 360 0 – 330 0 = 30 0

size 12{ and } {} Konstrueer 30 0

  • size 12{ and } {} Skerphoek 0 0 size 12{∠} {} Q size 12{∠} {} 90 0
  • size 12{ and } {} Stomphoek 90 0 size 12{∠} {} B size 12{∠} {} 180 0
  • size 12{ and } {} Reflexangle 180 0 size 12{∠} {} F size 12{∠} {} 360 0
  • size 12{ and } {} Gestrekte hoek D = 180 0
  • size 12{ and } {} Regtehoek L = 90 0
  • Omwentelingshoek S = 360 0

Huiswerkopdrag 1 en 2

  • Skerphoek size 12{∠} {}
  • Stomphoek size 12{∠} {}
  • Stomphoek size 12{∠} {}
  • Inspringendehoek size 12{∠} {}
  • Stomphoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Inspringende hoek size 12{∠} {}
  • Skerphoek size 12{∠} {}
  • Stomphoek size 12{∠} {}
  • Stomphoek size 12{∠} {} en Skerphoek size 12{∠} {}
  • Stomphoek size 12{∠} {} en Skerphoek size 12{∠} {}

Questions & Answers

what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
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miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
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Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
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ARC
A child is a member of community not society elucidate ?
JESSY Reply
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Simon Reply
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namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
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Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
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Jonathan
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Jonathan
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Kelu Reply
interpersonal relationships
Abdulfatai Reply
What would be the best educational aid(s) for gifted kids/savants?
Heidi Reply
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Saurabh
What are the treatment for autism?
Magret Reply
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities. before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue.. sometimes due to these physical problems..the diagnosis may be misdiagnosed. treatment for autism. well it depends on the severity. since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
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Source:  OpenStax, Wiskunde graad 8. OpenStax CNX. Sep 11, 2009 Download for free at http://cnx.org/content/col11033/1.1
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