14
1 াগতম 1 গণিত ণিণিটাল াসে েবাইস

Class 8 math lesson 11 (geometry)

Embed Size (px)

Citation preview

  • 1

    1

  • 11

  • c

    db

    a

    DA

    EB

    F

    x

    C

  • ...

  • , :() () () () ()

  • a

    bc

    -:

    C

    e

    A

    EB D

    b

    ec

    a

    : , a, b, c d, e ,

    d d

  • :(1) BE BD=e B D a

    b BD A

    () , D A c d BD A C () AB, A D, B C CD , ABCD -

    C

    A

    EB D

    b

    ec

    ad

  • -5:

  • () 3 . ., 4 . ., 4.5 . . 5.2 . .6 . .

  • . ?2. ?. ?

    110

  • -:

    -5: