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Wiskunde

Ruimte en vorm

Opvoeders afdeling

Memorandum

9.1

(a) skerp / acute

(b) regte / right

(c) stomp / obtuse

(d) gestrekte / straight

(e) inspringende / reflex

(f) 0mwenteling / revolution

9.2

(a) 37°

(b) 128°

(c) 60°

(d) 90°

(e) 120°

(f) 87°

  • (a) ewe groot / equal in size

(b) Die lengte van die lyne het niks te doen met die grootte van die hoeke nie.

The length of the lines has nothing to do with the size of the angles.

.

  • NE : 048°

E : 090°

SE : 133°

S : 180°

12.3 C : 125° F : 070°

E : 250° K : 295°

W : 190°

12.4

Leerders afdeling

Inhoud

Aktiwiteit: hoeke [lu 4.8, lu 4.9, lu 3.8]

9. KOM ONS HERSIEN

Wanneer lyne saamgevoeg word, word hoeke gevorm.

9.1 Werk in groepe van drie. Kyk watter groep die eerste die korrekte name van die volgende hoeke gan gee!

.2 Skat die groottes van die volgende hoeke. Meet dit dan met jou gradeboog en voltooi die tabel.

º

HOEK GESKAT GEMEET
a) 1 _____________ _____________
b) 2 _____________ _____________
c) 3 _____________ _____________
d) 4 _____________ _____________
e) 5 _____________ _____________
f) 6 _____________ _____________

9.3 Teken die volgende groottes hoeke met behulp van jou gradeboog.

a) 49°

b) 97°

c) 196°

d) 216°

9.4 KOPKRAPPER!

a) Watter hoek is die grootste: a of b?

b)

_____________________________________________________________________

b) Wat lei jy hieruit af? ___________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

9.5 ONTHOU!

Die grootte van ’n hoek word bepaal deur die hoeveelheid draaiing om die hoekpunt .

λ PUNT
Aantal punte saam vorm ’n
LYN
Lyne saam gee
HOEKE
Hoeke saam gee
FIGURE

11. KOPKRAPPER!

Kyk wat is die kleinste aantal reguit lyne waarmee jy die punte hier langsaan kan verbind SONDER om jou potlood op te tel!

(Kan jy dit met drie lyne doen?)

12. HOEKE EN NAVIGASIE

12.1 Het jy geweet?

In die skeep- en lugvaart word rigting altyd aangedui in terme van die hoek wat die roete kloksgewys (regs om) met die noordlyn maak.

Die noordlyn is 0 grade.

Die rigting word altyd deur drie syfers aangedui. ’n Rigting van 26 grade word geskryf as 026 grade.

12.2 Kyk goed na die magnetiese kompas. ’n Kompasnaald wys altyd Noord. Skryf nou die volgende rigtings in grade:

NO : ____________________

O : ____________________

SO : ____________________

S : ____________________

12.3 Kyk na die radarskerm van die boot. Skryf die rigting van die volgende bote in grade:

C : ____________________

E : ____________________

F : ____________________

K : ____________________

W : ____________________

Assessering

Leeruitkomste 4: Die leerder is in staat om gepaste meeteenhede, instrumente en formules in ‘n verskeidenheid kontekste te gebruik.

Assesseringstandaard 4.8: Dit is duidelik wanneer die leerder hoeke klassifiseer as ‘n skerphoek, regte hoek, stomphoek, gestrekte hoek, inspringende hoek of omwentelingshoek;

Assesseringstandaard 4.9: Dit is duidelik wanneer die leerder hoeke met ‘n gradeboog akkuraat tot een graad skat, vergelyk, meet en teken.

Leeruitkomste 3: Die leerder is in staat om eienskappe van en verwantskappe tussen twee-dimensionele vorms en drie-dimensionele voorwerpe in ‘n verskeidenheid oriëntasies en posisies te beskryf en voor te stel.

Assesseringstandaard 3.8: Dit is duidelik wanneer die leerder posisie/ligging op koördinaatstelsels (geordende roosters) en kaarte bepaal.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Wiskunde graad 7. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11076/1.2
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