
Triunghiuri asemenea
Authored by Matematica Online
Mathematics
7th Grade
Used 56+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fie
ABC EFG. Ştiind că AB=18 cm, BC=30 cm, FG=15 cm, EG=12 cm, aflaţi AC şi EF.24 cm şi 9 cm
24 cm şi 18 cm
20 cm şi 9 cm
12 cm şi 8 cm
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Raportul ariilor a două triunghiuri asemenea și pătratul raportului lor de asemanare sunt:
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se dă un trapez ABCD, în care secunosc BD=15 cm, CD=18 cm. Intersecţia diagonalelor este dată de punctul O şi de raportul = . Se cere determinarea segmentelor BO, OD şi AB.
9 cm, 6 cm şi 12 cm
6 cm, 9 cm şi 12 cm
5 cm, 9 cm şi 12 cm
6 cm, 9 cm şi 14 cm
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dacă ABC EFG şi m(<A) = 35 iar m(<B) = 75 , determinaţi măsurile unghiurilor triunghiului DEF.
35 , 75 , 70
30 , 75 , 70
35 , 70 , 70
35 , 75 , 65
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dacă ΔABC∼ΔMNP, MN=10 cm, NP=14 cm, MP= 18 cm, iar perimetrul triunghiului ABC este egal cu 126 cm, calculați lungimile laturilor triunghiului ABC.
AB=25 cm, AC=54 cm, BC=42 cm
AB=30 cm, AC=52 cm, BC=42 cm
AB=30 cm, AC=54 cm, BC=42 cm
AB=30 cm, AC=54 cm, BC=40 cm
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