
Asemănarea triunghiurilor
Authored by Sabareanu Lucian-Alexandru
Mathematics
7th - 8th Grade
Used 27+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pe laturile [KL] şi [KT] ale triunghiului KLT se iau punctele A şi B, astfel încât AB║LT. Dacă că LT=15 cm, KB=4 cm, BT=6 cm, atunci lungimea laturii [AB] este:
5
10
15
6
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pe laturile [AC] şi [BC] ale triunghiului ABC se consideră punctele D şi E, astfel încât CD=BE=6 cm, AD=4 cm,BC=15 cm. Propoziția matematică „ DE║AB” este:
adevarată
falsă
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dacă , BC=12 cm, EF=18 cm, DF=15 cm, atunci lungimea laturii [AC] este:
25
10
15
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fie triunghiul ABC cu AB = 20, AC = 21 şi BC = 25.
Fie MN//BC ( ) , astfel încât perimetrul triunghiului AMN este 11. Raportul de asemănare al triunghiurilor ABC și AMN este:
11
6
36
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fie M și N mijloacele laturilor [AB] și [AC] ale triunghiului ABC. Dacă MN=20, atunci lungimea laturii [BC] este:
10
20
40
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fie M și N mijloacele laturilor neparalele al trapezului ABCD(AB//CD). Dacă AB=28 și CD=38, atunci lungimea liniei mijlocii a trapezului este:
5
33
66
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