Trần Thị Huyền Trang
Giới thiệu về bản thân
truyện đồng thoại
36
có
3🖕🏻
Bước 1: Áp dụng định lý Pytago Trong tam giác ABC vuông tại A, theo định lý Pytago, bình phương độ dài cạnh huyền BC bằng tổng bình phương độ dài hai cạnh góc vuông AB và AC. Ta có công thức:
AB2+AC2=BC2cap A cap B squared plus cap A cap C squared equals cap B cap C squared𝐴𝐵2+𝐴𝐶2=𝐵𝐶2
Bước 2: Thay số và tính toán Thay các giá trị đã biết BC=8cap B cap C equals 8𝐵𝐶=8 cm và AC=6cap A cap C equals 6𝐴𝐶=6 cm vào công thức:
AB2+62=82cap A cap B squared plus 6 squared equals 8 squared𝐴𝐵2+62=82 AB2+36=64cap A cap B squared plus 36 equals 64𝐴𝐵2+36=64
Bước 3: Tìm độ dài cạnh AB Chuyển vế và tính toán để tìm AB2cap A cap B squared𝐴𝐵2, sau đó lấy căn bậc hai để tìm AB:
AB2=64−36cap A cap B squared equals 64 minus 36𝐴𝐵2=64−36 AB2=28cap A cap B squared equals 28𝐴𝐵2=28 AB=28cap A cap B equals the square root of 28 end-root𝐴𝐵=28√ AB=4×7cap A cap B equals the square root of 4 cross 7 end-root𝐴𝐵=4×7√ AB=27cap A cap B equals 2 the square root of 7 end-root𝐴𝐵=27√cm, hoặc xấp xỉ 5.295.295.29 cm.
Đáp án: Độ dài cạnh AB là 272 the square root of 7 end-root𝟐𝟕√cm (khoảng 5.295.29𝟓.𝟐𝟗 cm). undefined undefined
Dear Johnathan,
How are you? I have missed you since the last time we met. You might be wondering why I am writing you a letter. I heard that you are coming to Vietnam for a week, so I want to invite you to my hometown and hang out.
I live in beautiful Thai Nguyen. Thai Nguyen is famous for its wonderful scenery. I think you would love to see our green hills. We are very proud of our resources of tea, oranges, pomelos,… I will not spoil too much, you have to see them yourself. Another thing that tourists love about Thai Nguyen is the people. Thai Nguyen people are very friendly and warm-hearted. A lot of the people here are good at English, which is delightful for tourists. You should see some popular attractions here like Nui Coc Lake, Bo Dau Trade Village,…
There are so many more things about Thai Nguyen that I hope you can see. I look forward to hearing from you soon. Hopefully we can meet again soon.
Sincerely,
vu
9
Cho bố mày
Bằng nhau
13