Cho tam giác ABC có A=30 độ B =50 độ ,đường cao CH,AB=10cm.tính CH và AC

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Find the extra word in each line ( tìm từ dư ở mỗi dòng)

0. I was absolutely delighted when i found out my sister and i

1. had to won a big prize in the national lottery.But when i

2 thrown away alot of the old bus tickets and receipts just a

3 few days before and i had nearly thrown it away the lottery

4 tickets as well.Luckily i have realised just in the time and put

5.it away safely.Now that i knew our lucky number was the

6 winning number the problem was that I couldn’t remember

7 exactly where did i put it.I was looking through the papers

8 on my desk when I remembered it had been a very windy

9 the night before it.Some of my papers had blown off the

10 desk and i was very releived when i found ticket among

11 them on the floor .I checked the numbers carefully in the paper

12 and immediately phoned to my sister to tell her the good

13 news.She could hardly believe it how lucky we had been

14 and just kept asking me if i was sure i did had the right number.

15 We met in that evening to decide how to spend the money.