Som hoeken is 180 graden
12 - 2 oefeningen
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Som180GradenScherp
007e - Som hoeken is 180 graden - basis - 1ms
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Getal & Ruimte (13e editie) - 1 havo/vwo - 5.6 Getal & Ruimte (13e editie) - 1 vwo - 5.6 |
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3p Gegeven is \(\triangle A\kern{-.8pt}B\kern{-.8pt}C\) met \(\angle B=55\degree\) en \(\angle C=53\degree\text{.}\) |
○ De som van de hoeken in \(\triangle A\kern{-.8pt}B\kern{-.8pt}C\) geeft \(\angle B+\angle C+\angle A=180\degree\text{.}\) 1p ○ Dus \(\angle A=180\degree-\angle B-\angle C\text{.}\) 1p ○ \(\angle A=180\degree-55\degree-53\degree=72\degree\text{.}\) 1p |
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Som180GradenStomp
007f - Som hoeken is 180 graden - basis - 2ms
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Getal & Ruimte (13e editie) - 1 havo/vwo - 5.6 Getal & Ruimte (13e editie) - 1 vwo - 5.6 |
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3p Gegeven is \(\triangle P\kern{-.8pt}Q\kern{-.8pt}R\) met \(\angle R=35\degree\) en \(\angle P=36\degree\text{.}\) |
○ De som van de hoeken in \(\triangle P\kern{-.8pt}Q\kern{-.8pt}R\) geeft \(\angle R+\angle P+\angle Q=180\degree\text{.}\) 1p ○ Dus \(\angle Q=180\degree-\angle R-\angle P\text{.}\) 1p ○ \(\angle Q=180\degree-35\degree-36\degree=109\degree\text{.}\) 1p |