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Cho tam giác ABC vuông tại A, đường cao AH. Khi đó ta có hệ thức
HA2 = HB.HC
Hay “Trong tam giác vuông, bình phương đường cao ứng với cạnh huyền bằng Tích hai hình chiếu của hai cạnh góc vuông trên cạnh huyền”
Đáp án cần chọn là: B
I called him ten tuoi.Chau Hung this Anh.Nam 5c grade at the elementary school in a town office grandchildren dien.Hang forward to every December to tell him about the good work she has done over the past year, divided told him about the dream of her life as well as about the first Christmas gift sinh.Tu school year until now, I've gained a lot of points tot.Chau flowers will try to do well, as a child good children always listen to grandparents, parents. Only a few days to go until Christmas and then, I hope I will get a lego toys because I d puzzles and creator of many models embroidery stitch dep.Chau learned from grades 4 and has unfortunately for him self a very nice and warm scarf scarf ap.Ong remember this then, if he is sick, many children will not have gifts mat.Ong wise Oh, I love him very much. I wish my dream will come true sir!
His obedient children
cho mik nha!!!
His beloved Santa Claus
His grandchildren called heroes. I ten years old this year. I studyng at 5c primary school a typical town office. I just looking forward to December to tell you about the good work i have done over the past year, shared with you the dream of life as a Christmas gift. From the beginning of the school year to now, i have gained a lot of good flowers. I will try to do well, is a good kid always hear grandparents, parents. Only a few days to go until Christmas and then, i will look forward to receiving the logo toys because i love puzzle and create beautiful patterns. I learned embroidery from grades 4 ang sew you a scarf, if you are sick, then there will not be many good children gifts away. Mr. Santa, i love you very much. Grandchildren with my dream will come true sir!
Your obedient children
Nguyen Huu Hung Anh
bài này bạn tự lám hả? lời văn rất dễ thương đó!
गणित आसान है लेकिन पूछना भी है, इसके बारे में भी बात करें
45+34+435+45=559(đg hông)(đúng không)
Câu 2 chịu
Câu 3 ko bt nữa
đây là online math nha bạn