Шар бетіне тиісті C, D және Е нүктелері берілген және CD=7 cм, DE=8cм, CE=9 cм. Шардың центрінен CDE үшбұрыш жазықтығының центріне дейінгі қашықтық 1 см-ге тең болса, шар бетінің ауданын табыңыз.​

AO=1cм,

P=(7+8+9)=12

S=

RCDE=

OE2=AO2+AE2

OE=

S=4 R2S=4* =92,2

Объяснение:

it was great.i spent this time with my friend.we went for a walk.we watched tv.we ate cake,of couse.we went to the cinema and we watched interesting film.but on the 31 of december i was with my parents and grandparents.we celebrated new year together.i played computer games.i went to the zoo.i went to the art museum.i went to the cafe and did other funny things.so,my winter holidays were grade.

i love  to play football  as well as  my friends.you're a very  good man! today, we  are not going  for a walk.they act  after us.it  could not possibly  get here.