Kiểm tra 45 phút môn hình học 7

3/ Tam giác có ba cạnh bằng nhau là :

A. Tam giác vuông B. Tam giác cân C. Tam giác tù D. Tam giác đều

4/ Độ dài ba cạnh của một tam giác nào sau đây là độ dài ba cạnh của một tam giác vuông ?

A. 3cm, 4cm, 6cm B. 4cm, 5cm, 6cm C. 3cm, 4cm, 5cm D. 11cm, 5cm,11cm

5/ Một tam giác cân có góc ở đỉnh bằng 1000 thì mỗi góc ở đáy sẽ có số đo là:

A. 700 B. 400 C. 500 D. 800

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