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

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

Điểm
Lời phê của thầy, cô giáo
 I) Phần trắc nghiệm:
Câu 1 ) Cho tam giác ABC có AB = 5cm ; BC = 7 cm; AC = 4cm. Cách viết nào sau đây là đúng ?
A. B. C. D. E. 
Câu 2 ) Cho tam giác ABC có AB < AC . Gọi M là trung điểm của BC. Trên tia AM lấy điểm N sao cho M là trung điểm của AN. Điền dấu ( X ) vào ô trống thích hợp:
Câu
Nội Dung
Đúng
Sai
1



2
AC = BN


3



4
Trong tam giác ABN 


5



Câu 3 ) Cho tam giác MNP cân tại đỉnh M, cạnh bên bằng 15 cm, cạnh đáy bằng 18 cm. Gọi K là trọng tam của tam giác MNP. Độ dài đoạn thẳng MK bằng:
A. cm B. 4 cm C. 8cm D. 9 cm E. 12 cm 
Câu 4 ) Cho ba điểm A, B, C không tẳng hàng.Số điểm cách đều ba đoạn thẳng AB, BC, AC 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 BE. Kẻ EH vuông góc với BC ( H BC ). Gọi K là giao điểm của AB và HE. Chứng minh rằng: 
a) b) EK = EC c) AE < EC
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