Прямоугольник, стороны которого равны 6дм и 12дм имеет одинаковый периметр с квадратом. найди сторону квадрата и его площадь

ответ: сторона квадрата 9дм. площа квадрата 81дм в квадраті.

пошаговое объяснение:

р(прямокутника)=(а+b)×2

p=(6+12)×2

p=36(дм)

р(квадрата)=4×а

36=4×а

а=36÷4

а=9(дм)

s(квадрата)=а×а "не можу на клавіатурі зобразити в квадраті"

s=9×9

s=81(дм в квадраті)

2. what is ronaldo wearing?

3. what is beyonce knowles doing?

4. what are adriana karembeu and tom cruise doing?

5. who is playing football?

6. what are beyonce knowles and tom cruise wearing?

7. which people are not smiling?

8. which man is running?

9. which woman is dancing?

10. who is eating?

ответ:

what is ronaldo wearing?

what is beyoncé knowles doing?

what are adriana karembleu and tom cruise doing?

who`s playing football?

what are beyoncé knowles and tom cruise wearing?

which people are not smiling?

which man is running?

which woman is dancing?

who`s eating?

объяснение: