ai làm giúp mk sẽ được vote 5* và cho câu trả lời hay nhất phải làm chi tiết và chính xác Bài 4: Trên đường tròn ( O ) ta lấy một số điểm. Vẽ các dây cung có hai đầu là hai trong số các điểm đã cho. Biết rằng có tất cả 78 dây cung. Tính số điểm đã lấy trên đường tròn.

Các câu hỏi liên quan

Part 1 vocabulary and grammar circle the brst answer to complete sentences 1.When I get stuck in a traffic jam,it often____me a very long time to go home. A.costs B.takes C.lasts D.spends 2.My father is very_____that I won the first prize in the English Speaking Contest A.amaze B.amazement C.amazing D.amazed 3. She went to the party____she felt really tired A.despite B.although C.in spite of D.and 4.Did your motorbike____down on the way to school yesterday? A.break B.take C.do 4.turn 5.My younger sister usedto go to school____ A.with bicycle B.on foot C.in car D on bus 6.____city do yeu want to visit?-Paris A.where B.why C.when D.which 7.Please get____the bus.We have come back home A.on B.of C.off D.up 8.It is a_____movie.It makes us laugh a lot A.hilarious B.boring C.disappointing D.fightenting 9.A major star will be___on stage at this time tomorrow A.joining B.performing C.attending D.working 10.The film that features cartoon characters called_____ A.animation B.comedy C.documentary D.sci-fi Part 5 : Writing Rewrite these following sentences using the given words 1.My children often walked to school last year -->My children used........................................... 2 It is about 50 km from my house to my daughter’s house -->The distance between............................................. 3.How much is this ticket?-->What....................................... 4. Although the weather was bad, the match still went on -->In spite of....................................... 5.Because he was seriously injured, he couldn’t play soccer --> Because of...................................