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Wiskunde

Nog meetkunde, datahantering en waarskynlikheid

Opvoeders afdeling

Memorandum

5.

(a) simmetrie-lyn

(b) 90 grade

4

(c) (i) 6

(ii) 3

(iii) 2

Leerders afdeling

Inhoud

Aktiwiteit: simmetrie en rotasie

5. SIMMETRIE EN ROTASIE

a) Kyk weer na jou tekening by 1 b). Wat noem ons die stippellyn?

_____________________________________________________________________

b) Trek die volgende vierkant af en knip dit uit. Vind die middelpunt deur die hoeklyne in te trek. Druk nou jou vierkant met ’n drukspyker vas op ’n stuk karton. Maak ’n kolletjie in een hoek van die vierkant. Trek dan die omtrek van die vierkant met behulp van jou liniaal en potlood op die karton.

  • Roteer nou die kolletjie kloksgewys (regsom) tot by die volgende hoek.

Hoeveel grade het die vierkant roteer? __________________________________

As jy die vierkant 360 grade roteer, hoeveel keer het jy die vierkant gedraai?

__________________________________________________________________

c) Doen dieselfde met die seshoek en driehoek hier onder.

i) Hoeveel keer roteer die heksagoon in ’n volle omwenteling?

_____________________________________________________________________

ii) Hoeveel keer roteer die driehoeke in ’n volle omenteling? _____________________________________________________________________

iii) Hoeveel keer sal ’n reghoek in ’n volle omwenteling roteer? _____________________________________________________________________

Questions & Answers

if three forces F1.f2 .f3 act at a point on a Cartesian plane in the daigram .....so if the question says write down the x and y components ..... I really don't understand
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hey , can you please explain oxidation reaction & redox ?
Boitumelo Reply
hey , can you please explain oxidation reaction and redox ?
Boitumelo
for grade 12 or grade 11?
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the value of V1 and V2
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advantages of electrons in a circuit
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we're do you find electromagnetism past papers
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it is the force or component of the force that the surface exert on an object incontact with it and which acts perpendicular to the surface
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what is physics?
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a rate of change in velocity of an object whith respect to time
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Kidist
Acceleration is a rate of change in velocity.
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t =r×f
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hi
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use fnet method. how many obects are being calculated ?
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khuthadzo hii
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Lungile Reply
you use Fnet equals ma , newtoms second law formula
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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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