In the previous lesson we dealt with the theorem that says ... - AdMaths
In the previous lesson we dealt with the theorem that says ... - AdMaths
In the previous lesson we dealt with the theorem that says ... - AdMaths
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GR. 12 DERDE VRAESTEL : MEETKUNDE<br />
LES 3 : SIRKELMEETKUNDE :<br />
DIE OMTREKSHOEK IN ‘N SEMI-SIRKEL EN<br />
MOEILIKER VOORBEELDE OOR MIDDELPUNTSHOEKE EN OMTREKSHOEKE<br />
3.3 OEFENING 3<br />
1. <strong>In</strong> die figuur is O die middelpunt<br />
van die sirkel. BOC = 112°.<br />
AD = CD.<br />
Bereken DCE.<br />
2. <strong>In</strong> die figuur is O die middelpunt<br />
van die sirkel en BOA = 100°.<br />
BC = CD.<br />
Bereken AFB.<br />
3. O is die middelpunt van die sirkel<br />
en SQ halveer PQR .<br />
Bewys dat OS die middelloodlyn<br />
van PR is.<br />
( M.a.w. bewys dat RT = TP en<br />
dat OT RP . )<br />
Bls. 4 van 5<br />
B<br />
A O C<br />
A<br />
B<br />
Q<br />
100°<br />
O<br />
O<br />
D<br />
112°<br />
F<br />
T<br />
P<br />
C<br />
E<br />
R<br />
S<br />
E<br />
D
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