Question

Cho tam giác ABC vuông ở A,có cạnh AB là 24 cm,cạnh AC là 32 cm.Điểm M nằm trên cạnh AC.Từ M kẻ đường song song với cạnh AB cắt BC tại N.Đoạn MN dài 16 cm.Tính đoạn AM.

Answer 1

Đúng rồi bài này mik cũng ra thế !

Answer 2

Vì MN || AB nên MN AC tại M. Tứ giácMNAB là hình thang vuông. Nối NA. Từ N hạ NH AB thì NH là chiều cao của tam giác NBA  và của hình thang MNBA nên NH = MA và là 9 cm.  Diện tích tam giác NBA là : 28 x 9 : 2 = 126 (cm2 ) Diện tích tam giác ABC là : 36 x 28 : 2 = 504 (cm2 ) Diện tích tam giác NAC là : 504 – 126 = 378 (cm2 ) Đoạn MN dài là : 378 x 2 : 36 = 21 (cm)

Answer 3

bài mk giống y hệt

Answer 4

Answer 5

sai bét tè nhè lè!!!!!

Answer 6

ggfjsgfmashgfvgjsahmbfsgfbgksjahfhjhjhkjnjtgao.jeigthwguer.ahfielu/.uuuuuuuuuk,hqgwgyuweffeqmwkhbuwiehfuewifffffffffffffffffffrhwiufhiueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuukkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkukkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkukkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Answer 7

uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuukkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Answer 8

Tìm ma mà mọi người

Answer 9

de the

Answer 10

bạn Trần Phương Linh người ta không biết thì hỏi có gì sai

Answer 11

Nối A với N . Ta có tam giác NCA có MN là chiều cao , vì MN // AB nên MN cũng vuông góc với CA

Diện tích tam giác NCA là :

32 x 16 : 2 = 256  (cm2)

Diện tích tam giác ABC là :

24 x 32 : 2 = 384 ( cm2)

Diện tích tamn giác NAB là :

384 - 256 = 128 ( cm2)

Chiều cao NK hạ từ đỉnh N xuống cạnh AB dài :

128 x 2 : 24 = 10\(\frac{2}{3}\) cm

Vì MN // Ab nên tứ giác MNBA là hình thang vuông . Vậy NK cũng là chiều cao của hình thang MNBA . Do đó MA cũng bằng 10\(\frac{2}{3}\) cm

Answer 12

Giống y hệt

Answer 13

cái này lơp 1 vân làm đươc nhé

Answer 14

ài ày ẽ

···

Answer 15

Trần Phương Linh bn lm  như lm gỏi lém ý

Answer 16

kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkknguuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

Answer 17

Diện tích tam giác ABC là:

   32×24:2=38432×24:2=384 (cm2cm2 )

Diện tích tam giác ACN là:

   32×16:2=25632×16:2=256 (cm2cm2 )

Diện tích tam giác ANB là:

    384−256=128384−256=128 (cm2cm2 )

Tỉ số diện tích tam giác ABC và diện tích tam giác ANB là:

    384:128=3384:128=3

Xét tam giác ABC và ANB có chung đáy AB, diện tích tam giác ABC gấp 33 lần điện tích tam giác ANB nên chiều cao AC gấp 33 lần MA.

Độ dài đoạn MA là:

   32:3=323=10,66732:3=323=10,667 (cm)

        ĐS: 10,66710,667 cm

                                                                                      ht

                                                      

Answer 18

10 và 2/3 ( bạn viết kết quả dưới dạng hỗn số nha ) 

đúng 100% luôn 

Answer 19

jklt5ioip9ui-0rt5eigrhytju9yutr5ei9-e098tr5eoiw9tu04t5i489ry6eus0d9r37t564yuet9rse9wi89et5yrhdrseuf98etgy5r4ut5y98uretfh85y6495etorut589y6uetpdrugt8ryhtudorfurt89yu6rytf9diutrg89yedruiugtrhjfioghtrfhihtoertfou59rh0u09truy059eyt60ry98uy09er09yue50r9duge5tjoiyjuotdiuog9urtfgu9t0yy5uf90yhurt9fui-9guryt9hy-5utrh0yud0gr58t0diy6p8rti09dh8e6ut0ryp98u6r0tiyu6r9thu08ye68t90hpsiyw9iy0stur0psujsjgtsojg;shtrfgog;jodjhy;fsjth;ioyj;hskotrjikwtrh096w876059w54809ut5egursioreup8dfgotihjrdfobidptpgsoihdsui09p

Answer 20

lên google mà hỏi :)))))

Answer 21

èvđvvdfd