Đề kiểm tra 1 tiết kì 1 môn toán học lớp 10 (6)

TR NG THPT ƯỜT TOÁNỔ KI TRA NH KỲ KỲ IỂ ỌNĂM 2018 2019ỌMôn: Hình 10 Ch ng trình chu nươ ẩĐ CHÍNH TH CỀ Th gian: 45 phút (Không th gian phát )ờ ềMã thi ề157H và tên:ọ …………………………………. p:ớ …………….......……..………I. Ph tr nghi (5 đi m)ầ ểCâu 1. Trên tr x’Ox, cho hai đi và có là 3, 5. Khi đó ượAB ngằA. 2. B. 2. C. 3. D. 5.Câu 2. Cho hai vect ơ2 3a j= -r và i= +r giá tr nào thì hai vec ơar và br cùng ph ngươv nhau?ớA. 6. B. 6. C. 32- D. 23 .Câu 3. Cho hình bình hành ABCD. Bi ế12AB DI=uuur uuur khi đó:A. và ng nhau quaố .CB. là trung đi ể.CDC. trùng đi mể.D D. trùng đi .BCâu 4. Cho 3a j= -r và 2b j=- +r Tìm ủ2c b= +r .A. (– 3; 5). B. (1; 1). C. (0; 1). D. (3; 5).Câu 5. Cho ba đi phân bi A, B, C. ng th nào sau đây là đúng ?A. .AB BC CA- =uuur uuur uuur B. .AB CA CB+ =uuur uuur uuurC. .AB CB CA- =uuur uuur uuur D. .AB BC CA+ =uuur uuur uuurCâu 6. Cho giác ABCD. M, N, là trung đi AB, CD, MN. nh nào sau đây ượ sai ?A. AB BC AC+ =uuur uuur uuur B. .IC ID IN+ =uur uur uurC. 0.IA IB IC ID+ =uur uur uur uur D. .IA IB IM+ =uur uur uuurCâu 7. Trong ph ng Oxy, cho A(4; 2) và B(1; 5). Tìm tr ng tâm OAB.A. 5; .3æ öç ÷è B. 3; .2 2æ ö-ç ÷è C. 5; .3æ ö-ç ÷è D. ()1; .Câu 8. Cho hai đi A(– 2; 3), B(4; 7). Tìm thu tr Oy sao cho ba đi A, B, th ng hàng.ể ẳA. 10; .3æ öç ÷è B. ()0; C. 40; .3æ öç ÷è D. ()0;1 .Câu 9. Cho 0a¹r 0b¹r Kh ng nh nào sau đây đúng ?A. ar và br cùng ng vect th ba khác ướ ứ0r thì chúng cùng ng nhau.ướ ớB. ar và br cùng ng vect th ba thì chúng cùng ng nhau.ướ ướ ớC. ếar và br có cùng dài thì chúng ng nhau.ộ ằD. ar và br cùng ph ng vect th ba thì chúng cùng ph ng nhau.ươ ươ ớCâu 10. nh nào sau đây sai ?A. ba đi ể, ,O kì thì ta luôn có ấ.OA AB OB+ =uuur uuur uuurB. ếAB AC=uuur uuur thì .B CºC. ếAB DC=uuur uuur thì ABCD là hình bình hành.ộD. là trung đi đo AB thì ạ0AI BI+ =uur uur .Câu 11. Cho ABCD A(0; 1), B(0; -2), C(3; 0). Tìm đi sao cho ABCD là hình bình hành.ớ ểA. (3; 3). B. (3; 3). C. (– 3; 3). D. (– 3; 3).Câu 12. Cho tam giác vuông ABC có hai nh góc vuông AB 4, AC 6. Tính dài vect ơCB AB+uuur uuur .Trang Mã thi 157A. 10. B. 213 C. 8. D. 12.II. Ph lu (5 đi m)ầ ểCâu 1. Cho hình bình hành ABCD có tâm O. Ch ng minh:ứa)CO OB BA- =uuur uuur uuur b) AB BC DB- =uuur uuur uuur .Câu 2. Cho tam giác ABC. là đi trên nh BC sao cho 2CI 3BI. Bi di vect ơAIuur theo hai vect ơABuuur và ACuuur .Câu 3. ABC có A( 1; 1), B(5; 3), nh thu tr tung, tr ng tâm thu tr hoành. Tìm đi ểC và tính di tích ABC. Câu 4. ABC có A(1, 4), B( 0), C(5; 0). Tìm thu ng th ng BC sao cho ườ ẳ3ABC ABMS SD D= ------------- -------------ẾBÀI LÀMI. Ph tr nghi (5 đ) (Ghi đáp án vào ng ng phía i)ươ ướ Câu 10 11 12 Đáp ánII. Ph lu (5đ)ầ 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Mã thi 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Mã thi 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Mã thi 157............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Trang Mã thi 157