mn vô đây xem thằng Phạm Việt Đức chửi tớ nek

Giúp tôi giải toán - Hỏi đáp, thảo luận về toán học - Học toán với OnlineMath

dễ ẹt..

a) ta có :

 AM =MB

MC=MD

gócAMD=góc CMB

nên :tam giác AMD=tam giácBMC

suy ra : góc ADC=gócDCB (góc tương ứng)           (1)

b) từ (1) suy ra AD//BC (so le trong)

Giải:

" một nửa số thứ nhất gấp đôi số thứ hai" Nghĩa là số thứ hai bằng 1/4 số thứ nhất.

Giải dạng "Hiệu-tỉ"

Hiệu số phần bằng nhau là: 4 - 1 = 3 phần

Tổng số phần bằng nhau là: 1 + 4 = 5 phần

536,4 : 3 x 5 = 894

ĐS: 894

Vật tác dụng : tay

Kết quả : thước biến dạng

Lực hút trái đất

ko thì bài này

My House Is On the quynh Mai Street, Near Thanh Nhan Hospital. It's Painted in Yellow And Has An Iron Gate In The Middle. It's large About 60 Square Meters large And Has 3 Floors. The First Floor Has A Living Room And A Kitchen. My Room And My Parents' Bedroom Are In on The Second Floor. In on The Third Floor, There Is A Room For Guests And A Small Garden For Planting Trees. I Painted My Room In Blue And Design It According To My Style. A Single Bed Is In The Middle And Next To, There the Bed Is A Table And A Bookshelf. My Room also Has also A Big Window And I Arranged An Armchair Beside It To Enjoy The Scenery While Reading Books In The Room. In Addition To It, There are isa Tv, A Dvd With A Big loudspeaker And A Computer. so therefore, In My Room, I Can Do Everything That I Want. I Like the Music And I Have the a dvd To Listen to Music. When I Want To Watch a Film, I Have thea Tv. And I Have the a Computer For My Study.

My house is small.It's on Pasteur street.
There were two floors.The first has a living room,a kitchen and a bathroom .The second is our bedroom.
the living room is the largest room.there was a long table,four armchairs,a sofa and two bookshelfs.
the kitchen is narrow.
the bathroom's often full of water when it rains.

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