
Teorema fundamentala a asemanarii si criterii de asemanare
Authored by Denis .
Mathematics
7th Grade
Used 46+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
in criteriul L.L.L. Doua triunghiuri sunt asemenea daca au ........ corespondente proportionale
unghiurile
laturile
doua perechi de laturi
doua perechi de unghiuri
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă ΔABC∼ΔDEF, AB=14 cm și BC=18 cm, iar raportul de asemănare este 1/2, calculați lungimea segmentului [DE]
50
36
28
7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Teorema fundamentala a asemanarii spune ca o paralela dusa la una dintre laturile unui triunghi formeaza cu celalte doua laturi un ..... asemenea cu cel dat.
triunghi
patrat
cerc
dreptunghi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In triunghiul ABC consideram punctul D ∈ (AB) si construim DE ║ BC , E ∈ (AC)
AB =25 cm , BC=20 cm , CA=30 cm si DE=4 cm , Perimetrul triunghiului ADE
12
25cm
30cm
15cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca ΔABC~ΔMNP , AB=6cm , MN=4cm, MP=2cm , NP=6cm , calculati AC
3cm
9cm
28cm
26cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca ΔABC~ΔDEF , AB=10cm , BC=12cm si raportul de asemanare este k=2 , calculati lungimea DE
5cm
7cm
4cm
1cm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca ΔACB~ΔDMP , <A=35° , <C=73° , <D=?°
35°
40°
90°
55°
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