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Jenifermorales101
25.07.2021 •
Mathematics
Cho tam giác ABC cân tại A. Gọi K, H, I lần lượt là trung điểm của AB, BC, AC; N là điểm đối xứng của H qua I. BN cắt HK tai E và cắt AC tại F a) Chứng minh tứ giác AKHI là hình thoi b) Chứng minh AN vuông góc với CN c) Cho biết BC = 8 cm và AH = 6 cm. Tính È
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Ответ:
Question 1: <
Question 2: >
Question 3: <
Question 4: <
Step-by-step explanation:
The questions are repeating themselves but I tried to answer. For the first one, -2/3 is less than -1/6 because if you put the same denominator, that is what you get as your answer. Then, for the second one 2/3 is positive so you can automatically know it is greater than a negative fraction. Explanation for the third and fourth problems are the same as the first one.