Hiệu số phần bằng nhau là:

  \(\text{3 - 2 = 1 ( phần )}\)

 Chiều rộng vườn hoa là:

 \(\text{ 20 : 1 x 2 = 40 ( m )}\)

 Chiều dài vườn hoa là:

\(\text{ 40 + 20 = 60 ( m )}\)

 Chu vi vườn hoa là:

\(\text{ ( 60 + 40 ) x 2 = 200 ( m )}\)

Diện tích vườn hoa là:

 \(\text{ 60 x 40 = 2400 ( m² )}\)

               Đáp số: Chu vi: \(\text{200m}\)

                            Diện tích: \(\text{2400m²}\)

Yes, I also have a few plans to do in this 2023:
+, Good study, always at the top of the class.
+, Exam subjects with high scores.

In Britain there is a (1)___holiday______ now which people call Mother’s Day. In the old days many girls from working-class families in towns and cities and from farmers’ families in the country worked in rich houses. They had to do all the (2)___housework______ and their working day was usually very long, they often (3)___worked______ on Sundays, too. Once a year, it was usually one Sunday in March, they could (4)____visit_____ their mothers. They went home on that day and (5)____brought_____ presents for their mothers and for (6)___other______ members of their families. They could stay at home only one day, and then they went back (7)___to______their work. People call that day Mothering Day (8)____or_____Mothering Sunday.

Later workers at the (9)___factories______ and girls who worked in the houses of rich families received one free day a week, and Mothering Day became Mother’s Day. It is (10)____the_____ last Sunday in March.

polluted

environmental

electric

sick

death

contamination

attractive

residents

harmful

environmentalists