Một mảnh đất hình chữ nhật có chu vi là 240m. Biết tỉ số giữa chiều rộng và chiều dài là 0,6. Tính diện tích hình chữ nhật?
 

2 Complete the text with the words below.

Both photos 1____________ people using smartwatches. In the 2____________ photo, there is a woman on a train who is looking at her watch, 3____________ in the second photo there are two men jogging and wearing smartwatches. The woman looks as 4____________ she is on her way to work and checking her emails. It 5____________ to me that she’s just had a notification of a new message and is looking to see who the sender is. She is holding a book, but her attention is directed at the small screen on her wrist. 6____________ the first photo, the second photo does not show the men looking at their watches. It doesn’t look to me 7____________ if they are interested in anything apart from running. In my 8____________, athletes wear smartwatches to check their performance, such as counting their steps or their heart rates, and not to stay connected with work. They don’t 9____________ stressed or like they need to be checking their phones every two minutes. The way I 10____________ it, we should all have periods of time when we are unconnected from our studies or work, and just use technology for leisure.