user-avatar
vothibichoanh
2 năm trước
* Bài 10. Cho tam giác ABC vuông tại A có chu vi là 120cm. Độ dài cạnh AC lớn hơn AB là 20cm; cạnh BC = 50 cm. Tinh: a) Độ dài cạnh AB, AC; b) Tinh diện tich tam giâc ABC. c) Tính chiều cao hạ từ A xuống BC.
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

116. Her parents are _______________ that she had won the first prize. (joy) 117. The school was completely ________________ by fire. (destruction) 118. When there is a volcanic _______________, hundreds of people may lose their life. (erupt) 119. The ______________ resorts are empty in winter. (coast) 120. The building was _______________ damaged in the war. (extend)121. _______________, the typhoon caused severe damage to the village. (luck) 122. The talk ended ___________ when one of the delegations walked out in protest. (abruptness) 123. He has always demanded the highest standard of ____________ from his children. (behave) 124. She is an _____________ teacher who graduated from the university last year. (experience) 125. The exact _______________ of universe remains a _________________. (mysterious) 126. I think UFOs are just the ___________________ of some people. (imagine) 127. Is there any _______________ for the existence of life in other planet? (evident) 128. I find the story about UFOs hardly ___________________. (believe) 129. She needed one stamp to finish her stamp ________________. (collect) 130. Great works of arts like Mona Lisa are _________________. (precious)

101. You should ________________ yourself with the new environment. (family) 102. We think that Mother’s Day should be celebrated __________________ (nation) 103. We are very busy ___________________ the Lunar New Year holiday. (celebration) 104. I worry about the _____________ effect that violent films may have on children. (destroy) 105. He’s been one of the most effective ____________ in the campaign. (act) 106. My opinion is that ghosts are ______________. There are no ghosts in the world. (exist) 107. What is the UFO, Dad? – Well, it is an ______________ flying object. (identical) 108. Maldini is _______________ in AC Milan. He is the key to success. (replace) 109. Life ________________ has increased a lot in modern life. (expect) 110. Children will have a time to __________________ tradition. (enhancement) 111. She is going downtown to buy some ________________ ornaments. (decoration) 112. He is just a business ________________. (acquaint) 113. All guests arrived bringing ______________. (give) 114. These hills were formed by _________________ eruption. (volcano) 115. Students have a tendency to _______________ themselves at exam time. (behavior)

87. Consumers don’t want products that will save money but work ________________ (affect) 88. The boy behaves so __________________ that we don’t like him. (politeness) 89. Sulfur dioxide is one of several_______ that can be found in coal-fired power station. (pollute) 90. If ________________ continues, there will be more a lot of forests ten years from now. (forest) 91. The report is _________________, so I can hardly find anything informative. (sense) 92. Your ______________ have to be taken into consideration. (suggest) 93. ________________, our environment must be protected. (ultimate) 94. The ___________ to our advertisement has been somewhat ____________. (respond / appoint) 95. In Sweden, most of the houses will be _____________ by __________ energy soon. (hot / sun) 96. Snow in April is an unusual _________________ in this area. (occur) 97. Good __________________ were the key to success. (prepare) 98. People sang Auld Lang Syne ________________ on New Year’s Eve. (joy) 99. We love our grandma for her _________________. (generous) 100. Mary is ________________ to be the most famous girl in our school. (considerate)

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