-Hi Mark!
-Hello Lara!
-Where were you yesterday?
-On the farm with my grandfather.
-And which animals you seen?
-I seen cows, chickens, ships, pigs, hors, cat and dogs.
- What kind of work do you do on a farm?
-I helped my grandfather feed the animals and gave them water.
-That day on the farm was interesting?
-Yeah, that day was very interesting. Do you know what is farming and why is it important?
- Yes, of course, pets give milk, wool, we get meat.
- Yes, you are right and this is very important. Ok. Good buy!
-Good buy!
Объяснение:
АК+ВК=13,6 см
АК-ВК=4 см
пусть АК=х, тогда ВК= х-4
х + х - 4= 13,6
2х = 13,6 + 4
2х = 17,6
х = 8, 8
АК = 8,8 см
ВК= 13,6 - 8,8 = 4,8 см