Câu 41: Hãy chọn câu trả lời sai.Cho hình vẽ ta có: A. ABCD là hình bình hành B. AB // CDC. ABCE là hình thang cân D. BC // ADCâu 42: Cho tam giác ABC, đường cao AH. Gọi I là trung điểm của AC, E là điểm đối xứng với H qua I. Tứ giác AECH là hình gì?A. Hình chữ nhật B. Hình bình hành C. Hình thang cân D. Hình thang vuôngCâu 43: Độ dài đường trung tuyến ứng với cạnh huyền của tam giác vuông có các cạnh góc vuông...
Đọc tiếp
Câu 41: Hãy chọn câu trả lời sai.
Cho hình vẽ ta có: ![](data:image/png;base64,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)
A. ABCD là hình bình hành
B. AB // CD
C. ABCE là hình thang cân
D. BC // AD
Câu 42: Cho tam giác ABC, đường cao AH. Gọi I là trung điểm của AC, E là điểm đối xứng với H qua I. Tứ giác AECH là hình gì?
A. Hình chữ nhật B. Hình bình hành C. Hình thang cân D. Hình thang vuông
Câu 43: Độ dài đường trung tuyến ứng với cạnh huyền của tam giác vuông có các cạnh góc vuông bằng 6cm, 8cm là:
A. 10cm B. 9cm C. 5cm D. 8cm
Câu 44: Hãy chọn câu sai.
A. Tứ giác lồi là tứ giác luôn nằm trong một nửa mặt phẳng có bờ là đường thẳng chứa bất kỳ cạnh nào của tứ giác.
B. Tổng các góc của một tứ giác bằng 1800.
C. Tổng các góc của một tứ giác bằng 3600.
D. Tứ giác ABCD là hình gồm đoạn thẳng AB, BC, CD, DA, trong đó bất kì hai đoạn thẳng nào cũng không nằm trên một đường thẳng.
Câu 45: Cho tứ giác ABCD có góc A= 60 độ, Góc B= 135 độ, góc D= 29 độ. Số đo góc C bằng:
A. 1370 B. 1360 C. 360 D. 1350
a: Xét tứ giác ABCE có
I là trung điểm chung của AC và BE
nên ABCE là hình bình hành
b: Xét tứ giác AHCF có
I là trung điểm chung của AC và HF
góc AHC=90 độ
DO đó: AHCF là hình chữ nhật
c: AF//BC
AE//BC
Do đó: A,E,F thẳng hàng