ĐỊNH LÝ TA-LET

ĐỊNH LÝ TA-LET

8th Grade

12 Qs

quiz-placeholder

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ĐỊNH LÝ TA-LET

ĐỊNH LÝ TA-LET

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

coo xuann

Used 33+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Viết tỉ số cặp đoạn thẳng có độ dài như sau: AB = 4dm, CD = 20 dm

ABCD=14\frac{AB}{CD}=\frac{1}{4}

ABCD=15\frac{AB}{CD}=\frac{1}{5}

ABCD=16\frac{AB}{CD}=\frac{1}{6}

ABCD=17\frac{AB}{CD}=\frac{1}{7}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Viết tỉ số cặp đoạn thẳng có độ dài như sau: AB = 12cm, CD = 10 cm

ABCD=56\frac{AB}{CD}=\frac{5}{6}

ABCD=65\frac{AB}{CD}=\frac{6}{5}

ABCD=34\frac{AB}{CD}=\frac{3}{4}

ABCD=43\frac{AB}{CD}=\frac{4}{3} G

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Cho hình vẽ, trong đó DE // BC, AD = 12, DB = 18, CE = 30. Độ dài AC bằng:

20

1825\frac{18}{25}

50

45

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Cho hình vẽ, trong đó DE // BC, AE = 12, DB = 18, CA = 36. Độ dài AB bằng:

30

36

25

27

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cho M thuộc đoạn thẳng AB thỏa mãn

 AMMB=38\frac{AM}{MB}=\frac{3}{8}  thì tỉ số  AMAB=?\frac{AM}{AB}=?  

 AMAB=58\frac{AM}{AB}=\frac{5}{8}  

 AMAB=511\frac{AM}{AB}=\frac{5}{11}  

 AMAB=311\frac{AM}{AB}=\frac{3}{11}  

 AMAB=811\frac{AM}{AB}=\frac{8}{11}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Cho hình vẽ, trong đó AB // CD và DE = EC. Trong các khẳng định sau, khẳng định nào sai?

AKEC=KBDE\frac{AK}{EC}=\frac{KB}{DE}

AK = KB

AOAC=ABDC\frac{AO}{AC}=\frac{AB}{DC}

AKEC=OBOP\frac{AK}{EC}=\frac{OB}{OP}

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Chọn câu trả lời đúng. Cho hình bên, biết DE // AC, tìm x:

x = 6,5

x = 6,25

x = 5

x = 8

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