8__

Page 1

‫اﻟﻤﺴﺎﺣﺔ اﻟﺠﺎﻧﺒﯿﺔواﻟﻜﻠﯿﺔ‬ ‫واﻟﺤﺠﻢ ﻟﻠﻤﺨﺮوط اﻟﻘﺎﺋﻢ‬ ‫‪ ‬إذا ﻛﺎن ﻧﻖ طﻮل ﻧﺼﻒ ﻗﻄﺮ ﻗﺎﻋﺪة اﻟﻤﺨﺮوط ‪ ،‬ل طﻮل راﺳﻤﮫ ‪ ،‬ع إرﺗﻔﺎﻋﮫ ﻓﺈن ‪:‬‬ ‫‪ ‬اﻟﻤﺴﺎﺣﺔ اﻟﺠﺎﻧﺒﯿﺔ ﻟﻠﻤﺨﺮوط = ‪ π‬ل ﻧﻖ‬ ‫‪ ‬اﻟﻤﺴﺎﺣﺔ اﻟﻜﻠﯿﺔ ﻟﻠﻤﺨﺮوط = ‪ π‬ﻧﻖ )ل ‪ +‬ﻧﻖ(‬ ‫‪١‬‬ ‫‪ ‬ﺣﺠﻢ اﻟﻤﺨﺮوط اﻟﻘﺎﺋﻢ =‬ ‫‪٣‬‬

‫‪٢‬‬

‫‪ π‬ﻧﻖ ع‬

‫ل‬

‫ﻣﻼﺣﻈﺎت‬

‫ع‬

‫‪ ‬ﻣﺤﯿﻂ اﻟﺪاﺋﺮة = ‪ π ٢‬ﻧﻖ‬ ‫‪ ‬ﻣﺴﺎﺣﺔ اﻟﺪاﺋﺮة = ‪ π‬ﻧﻖ‬ ‫‪ ‬اﻟﻜﺜﺎﻓﺔ =‬

‫‪٢‬‬

‫ﻧﻖ‬

‫اﻟﻜﺘﻠﺔ‬ ‫اﻟﺤﺠﻢ‬

‫ﻣﺜﺎل ‪١‬‬ ‫‪٢‬‬

‫ﻣﺨﺮوط داﺋﺮى ﻗﺎﺋﻢ ﻣﺴﺎﺣﺔ ﻗﺎﻋﺪﺗﮫ ‪ π ٢٥‬ﺳﻢ وطﻮل راﺳﻤﮫ ‪ ١٣‬ﺳﻢ أوﺟﺪ‬ ‫‪ -١‬ﻣﺴﺎﺣﺘﮫ اﻟﺠﺎﻧﺒﯿﺔ‬ ‫‪ -٢‬ﻣﺴﺎﺣﺘﮫ اﻟﻜﻠﯿﺔ‬ ‫‪ -٣‬ﺣﺠﻤﮫ‬

‫اﻟﺤﻞ‬ ‫ﻣﺴﺎﺣﺔ اﻟﻘﺎﻋﺪة = ‪ π‬ﻧﻖ‬

‫‪٢‬‬

‫‪١٣‬ﺳﻢ‬ ‫‪١٢‬ﺳﻢ‬

‫‪٢‬‬

‫‪ π‬ﻧﻖ = ‪π ٢٥‬‬ ‫‪ B‬ﻧﻖ = ؟‪ ٥ = ٢٥‬ﺳﻢ‬

‫‪٥‬ﺳﻢ‬

‫أ‪ /‬ﺣﺴﺎم ﻛﺎﻣﻞ‪٠١٢٢٤٣٥٦٩٢٠ &٠١١٢٨٢٨٥٤٤٤‬‬

‫‪- ٩٣ -‬‬

‫" اﻟﮫﻨﺪﺳــــــــــــﺔ اﻟﻔﺮاﻏﯿﺔ"‬


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.