user-avatar
phamtuan2000
2 năm trước
Cho tam giác ABC, có AB = 6cm, AC = 9cm, BC = 10cm, đường phân giác trong AD, phân giác ngoài AE. Đường phân giác CF cắt AD tại I Tính tỉ số diện tích Tam giác DIF và diện tích tam giác ABC Giúp mk nha
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Complete the second sentence so that it means the same as the first one. 1. James is hard-working and smart. James isn’t …………………… 2. Are there four windows in her room ? Does ………………………………………………………………………………. 3. There isn’t a living room, a kitchen, a bathroom and two bedrooms in my house. My house ……………………………………….………………………………… 4. How old is your father ? What is …………………………………………..………………….…………….. 5. My address is 20 Tran Phu Street. I…………………………………………………………………………………….. 6. Kate has round blue eyes.  Kate’s eyes………………………………………………………………………… 7. What is the price of these apples ?  How much…………………………………………………………….…………..? 8. She has full lips. Her lips………………………………………………………..……………………. 9. The table is under the bookshelf. The bookshelf……………………………………………………………………… 10. I don't watch TV in any other rooms but the living room. I only ……………………………………………………………………………….

Read the passage and decide which answer A, B, C or D best fits each space When a volcano (78)________, hot gases and melted rock from deep within Earth find (79)________ way up to the surface. This material may (80)________ slowly out of a crack in the ground, or it may explode suddenly into the air. Volcanic eruptions may be very (81)________. But they can (82)________ create new landforms. Of the nearly 1,900 volcanoes active today, or known to have been active in (83)________ times, about ninety per cent can be found in the (84)________ of South America, North America, Asia, and Oceania that are close (85)________ the Pacific Ocean. When marked on a map of the world, this line of volcanoes looks a bit (86)________ a vast, open circle. For this (87)________ it is known as the ring of fire. Adapted from Britannica Elementary Library, Encyclopaedia Student and Home Edition. Chicago: Encyclopaedia Britannica 2011 78 A. erupts B. throws C. blows 79 A. them B. they C. their 80 A. leave B. come C. flow 81 A. destruction B. destructive C. destroy 82 A. also B. too C. so 83 A. historically B. historical C. history 84 A. pieces B. ways C. areas 85 A. with B. at C. to 86 A. as B. like C. so 87 A. reason B. aim C. condition

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team