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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

Discuss the differences between taste and flavor, including how other sensory inputs contribute to our  perception of flavor.
John Reply
taste refers to your understanding of the flavor . while flavor one The other hand is refers to sort of just a blend things.
Faith
While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma
Kamara
which drugs can we use for ulcers
Ummi Reply
omeprazole
Kamara
what
Renee
what is this
Renee
is a drug
Kamara
of anti-ulcer
Kamara
Omeprazole Cimetidine / Tagament For the complicated once ulcer - kit
Patrick
what is the function of lymphatic system
Nency Reply
Not really sure
Eli
to drain extracellular fluid all over the body.
asegid
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include: 1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
Adama
what is anatomy
Oyindarmola Reply
Anatomy is the identification and description of the structures of living things
Kamara
what's the difference between anatomy and physiology
Oyerinde Reply
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
AI-Robot
what is enzymes all about?
Mohammed Reply
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
yes
Prince
how does the stomach protect itself from the damaging effects of HCl
Wulku Reply
little girl okay how does the stomach protect itself from the damaging effect of HCL
Wulku
it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL
Kamara
function of digestive system
Ali Reply
function of digestive
Ali
the diagram of the lungs
Adaeze Reply
what is the normal body temperature
Diya Reply
37 degrees selcius
Xolo
37°c
Stephanie
please why 37 degree selcius normal temperature
Mark
36.5
Simon
37°c
Iyogho
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature
Stephanie
37A c
Wulku
what is anaemia
Diya Reply
anaemia is the decrease in RBC count hemoglobin count and PVC count
Eniola
what is the pH of the vagina
Diya Reply
how does Lysin attack pathogens
Diya
acid
Mary
I information on anatomy position and digestive system and there enzyme
Elisha Reply
anatomy of the female external genitalia
Muhammad Reply
Organ Systems Of The Human Body (Continued) Organ Systems Of The Human Body (Continued)
Theophilus Reply
what's lochia albra
Kizito
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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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