Som hoeken is 180 graden
12 - 2 oefeningen
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Som180GradenScherp
007e - Som hoeken is 180 graden - basis - 0ms
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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 \(\triangle K\kern{-.8pt}L\kern{-.8pt}M\) met \(\angle K=57\degree\) en \(\angle L=67\degree\text{.}\) |
○ De som van de hoeken in \(\triangle K\kern{-.8pt}L\kern{-.8pt}M\) geeft \(\angle K+\angle L+\angle M=180\degree\text{.}\) 1p ○ Dus \(\angle M=180\degree-\angle K-\angle L\text{.}\) 1p ○ \(\angle M=180\degree-57\degree-67\degree=56\degree\text{.}\) 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 \(\triangle A\kern{-.8pt}B\kern{-.8pt}C\) met \(\angle B=31\degree\) en \(\angle C=33\degree\text{.}\) |
○ 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 ○ \(\angle A=180\degree-31\degree-33\degree=116\degree\text{.}\) 1p |