Bài kiểm tra môn: hình học 7 ( thời gian: 1 tiết )

Phòng GD&ĐT hậu lộc bài kiểm tra môn: hình học
Trường THCS châu lộc ( Thời gian: 1 tiết )
Đề Chẵn
 Họ và Tên:………………….……………………….Lớp 7……

Điểm
Lời phê của thầy, cô giáo
 I) Phần trắc nghiệm:
Câu 1 ) Cho tam giác ABC có . Khẳng định nào sau đây là đúng ?
A. BC AC > BC
Câu 2 ) Cho tam giác ABC có góc A tù, AB < AC . Gọi M là trung điểm của BC. Kẻ AH BC ( H BC ).
 Điền dấu ( X ) vào ô trống thích hợp:
Câu
Nội Dung
Đúng
Sai
1
Vì AB > AC nên HB > HC


2
H thuộc đoạn BC


3
BH < BM


4
CH < CM


5
H nằm giữa B và M


Câu 3 ) Cho tam giác ABC cân tại đỉnh A, cạnh bên bằng 13 cm, cạnh đáy bằng 10 cm. Gọi G là trọng tam của tam giác ABC. Độ dài đoạn thẳng AG bằng:
A. cm B. 4 cm C. 6 cm D. 8 cm E. 9 cm 
Câu 4 ) Cho ba điểm A, B, C không tẳng hàng.Số điểm cách đều ba điểm A, B, C là :
 A. 1 B. 2 C. 3 D. 4 E. 5 
II) Phần Tự luận:
Câu 5 ) Cho tam giác ABC vuông tại A, đường phân giác CE. Kẻ EH vuông góc với BC ( H BC ). Gọi K là giao điểm của AC và EH. Chứng minh rằng: 
a) b) EK = EB c) AE < EB
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