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١٤٥ )ج( 112° ﺍﳌﺜﻠﺜﺎﺕ )أ( 90°
)د( 120° )ب( 108°
) [Cayley 2007] (٣١ﰲ اﻟﺸﻜﻞ اﳌﺮﻓﻖ ،ﻛﻞ ﻣﻦ △ABCو △PQRﻣﺘﺴﺎوي
اﻷﺿﻼع .ﻣﺎ ﻗﻴﺎس اﻟﺰاوﻳﺔ CXY؟
Q
)د( 45° R C )أ( 30°
AX
75°
Y P
65°
)ب( 35°
B
)ج( 40°
) (٣٢ﰲ اﻟﺸﻜﻞ اﳌﺮﻓﻖ ACE ،ﻣﺜﻠﺚ F ،BD AE ،ﻧﻘﻄﺔ ﺗﻘﺎﻃﻊ BEو
.ADﻛﻢ ﻋﺪد اﻟﻌﺒﺎرات اﻟﺼﺎﺋﺒﺔ ﻣﻦ ﺑﲔ اﻟﻌﺒﺎرات اﻟﺘﺎﻟﻴﺔ ؟
)△AFE ∼ △DFB (٢ )△BFA ∼ △DFE (١
)△BFC ∼ △DCF (٤ )△ACE ∼ △BCD (٣
A
B
F
CD E
)ب( ) 1ج( ) 2د( 3 )أ( 0
) [MAΘ 2011] (٣٣ﻗﻴﺎس اﻟﺰاوﻳﺔ اﻟﺼﻐﺮى ﻏﲑ اﻟﻘﺎﺋﻤﺔ )ﺑﺎﻟﺪرﺟﺎت( ﰲ ﻣﺜﻠﺚ ﻗﺎﺋﻢ
