thì ytb

Gọi đáy lớn là x

=>Đáy bé là 2/3x

Theo đề, ta có: (2/3x+5)*2/3x*h/2-2/3x*x*1/2h=500

=>h/2[2/3x(2/3x+5)-2/3x^2]=500

=>h*[4/9x^2+10/3x-2/3x^2]=1000

=>h[-2/9x^2+10/3x]=1000

mà h*2/3x*x=900

nên 2/3x^2/(-2/9x^2+10/3x)=9/10

=>20/3x^2=-2x^2+30x

=>26/3x^2-30x=0

=>x=45/13

=>Đáy bé là 30/13(m)

1002

A, x-14,5=4,5×6

X-14,5= 27

X= 27 + 14,5

X=41,5

B, x-4,32= 25×4

    X-4,32=100

    X= 100 + 4,32

     X=104,32

1. cupboard
2. stove
3. wardrobe
4. microwave
5. roof
6. hall
7. sink
8. fridge/refrigerator
9. kitchen

RT 180-72 FD 50 RT 36 FD 25 LT 180-108]

repeat 6[fd 100 repeat 4[fd 20 rt 90]bk 100 rt 60]

repeat 26[repeat 8rt 360/8 fd 50]rt 360/26]

REPEAT 3[ FD 100 RT 120 ]

lt 45 repeat 4[fd 100 rt 90]