Page 19 - وحدة المضلعات او متوسط

‫‪‬‬ ‫‪ ‬ﻳﺒﻴﻦﺍﻟﺠﺪﻭﻝﺍﻟﻤﺠﺎﻭﺭﻧﺴﺐﻣﻜ ﹼﻮﻧﺎﺕ‬
‫ﺍﻟﻌﻨﺼﺮ ﺍﻟﻨﺴﺒﺔ‬
‫ﻧﻴﺘﺮﻭﺟﻴﻦ ‪% ٧٨‬‬ ‫ﺍﻟﻐﻼﻑﺍﻟﺠﻮﻱﻟﻸﺭﺽ‪ .‬ﹶﻣ ﱢﺜﻞﺍﻟﺒﻴﺎﻧﺎﺕ‬
‫ﺃﻭﻛﺴﺠﻴﻦ ‪% ٢١‬‬ ‫ﺑﺎﻟﻘﻄﺎﻋﺎﺕﺍﻟﺪﺍﺋﺮﻳﺔ‪.‬‬
‫ﻏﻴﺮ ﺫﻟﻚ ‪% ١‬‬

‫ﻋﻨﺪ ﺭﺳﻢ ﺍﻟﻘﻄﺎﻋﺎﺕ ﺍﻟﺪﺍﺋﺮﻳﺔ ﻧﺤﺘﺎﺝ ﺃﻭ ﹰﻻ ﺇﻟﻰ ﺗﺤﻮﻳﻞ ﺍﻟﺒﻴﺎﻧﺎﺕ ﺇﻟﻰ ﻧﺴﺐ ﻭﻛﺴﻮﺭ‬
‫ﻋﺸﺮﻳﺔ‪ ،‬ﺛﻢ ﺇﻟﻰ ﺩﺭﺟﺎﺕ ﻭﻧﺴﺐ ﻣﺌﻮﻳﺔ‪.‬‬

‫‪‬‬
‫ﻳﺒﻴﻦ ﺍﻟﺠﺪﻭﻝ ﺍﻟﻤﺠﺎﻭﺭ ﻋﺪﺩ ﺍﻷﻧﻮﺍﻉ ﺍﻟﻤﻬ ﱠﺪﺩﺓ ‪ ‬‬
‫‪‬‬ ‫‪‬‬
‫‪‬‬
‫‪‬‬ ‫ﺑﺎﻻﻧﻘﺮﺍﺽ ﻣﻦ ﺃﺭﺑﻌﺔ ﻃﻮﺍﺋﻒ ﺣﻴﻮﺍﻧﻴﺔ ﻓﻲ ﺃﺣﺪ ﺍﻷﻗﺎﻟﻴﻢ‪.‬‬
‫ﻣ ﹼﺜﻞ ﻫﺬﻩ ﺍﻟﺒﻴﺎﻧﺎﺕ ﺑﺎﻟﻘﻄﺎﻋﺎﺕ ﺍﻟﺪﺍﺋﺮﻳﺔ‪.‬‬

‫• ﺍﺣﺴﺐ ﺍﻟﻌﺪﺩ ﺍﻟﻜﻠﻲ ﻟﻸﻧﻮﺍﻉ‪ :‬‬
‫‪‬‬
‫‪.١٧٠ = ١١ + ١٤ + ٧٧ + ٦٨‬‬
‫‪U.S Fish & wildlife service‬‬

‫• ﺍﺣﺴﺐ ﺍﻟﻨﺴﺒﺔ ﺍﻟﺘﻲ ﺗﻘﺎﺭﻥ ﻋﺪﺩ ﺃﻧﻮﺍﻉ ﻛﻞ ﻃﺎﺋﻔﺔ‬

‫ﺑﺎﻟﻤﺠﻤﻮﻉ‪ ،‬ﺛﻢ ﺍﻛﺘﺒﻬﺎ ﻋﻠﻰ ﺻﻮﺭﺓ ﻛﺴﺮ ﻋﺸﺮﻱ ﺇﻟﻰ ﺃﻗﺮﺏ ﻣﻨﺰﻟﺘﻴﻦ ﻋﺸﺮﻳﺘﻴﻦ‪.‬‬

‫‪٠٫٤٥‬‬ ‫≈‬ ‫_‪_٧_٧‬‬ ‫‪٠٫٤٠‬ﺍﻟﻄﻴﻮﺭ‪:‬‬ ‫=‬ ‫_‪_٦_٨‬‬ ‫ﺍﻟﺜﺪﻳﻴﺎﺕ‪:‬‬
‫‪١٧٠‬‬ ‫‪١٧٠‬‬

‫‪٠٫٠٦‬‬ ‫≈‬ ‫_‪_١_١‬‬ ‫ﺍﻟﺒﺮﻣﺎﺋﻴﺎﺕ‪:‬‬ ‫‪٠٫٠٨‬‬ ‫≈‬ ‫_‪_١_٤‬‬ ‫ﺍﻟﺰﻭﺍﺣﻒ‪:‬‬ ‫‪‬‬
‫‪١٧٠‬‬ ‫‪١٧٠‬‬
‫ﻳﻌﺮﻑ ﺍﻟﻨﻤﺮ ﺍﻟﻌﺮﺑﻲ ﺑﺮﺃﺳﻪ ﺍﻟﻀﺨﻢ ﻭﺃﺭﺟﻠﻪ‬
‫‪‬‬ ‫• ﺃﻭﺟﺪ ﺑﺎﻟﺪﺭﺟﺎﺕ ﻣﺎ ﻳﻤﺜﻠﻪ ﻛﻞ ﻗﻄﺎﻉ ﻓﻲ ﺍﻟﺪﺍﺋﺮﺓ‪.‬‬ ‫ﺍﻟﻘﺼﻴﺮﺓ‪ ،‬ﻭﻳﺘﻮﺍﺟﺪ ﻋﻠﻰ ﺍﻣﺘﺪﺍﺩ ﺳﻠﺴﺔ ﺟﺒﺎﻝ‬

‫‪‬‬ ‫‪‬‬ ‫ﺍﻟﺜﺪﻳﻴﺎﺕ‪°١٤٤ = °٣٦٠ × ٠٫٤٠ :‬‬ ‫ﻣﺪﻳﻦ ﻭﺍﻟﺤﺠﺎﺯ ﻭﺍﻟﺴﺮﻭﺍﺕ ﺣﺘﻰ ﺍﻟﻴﻤﻦ‪،‬‬
‫‪‬‬ ‫ﻛﻤﺎ ﻳﻮﺟﺪ ﻓﻲ ﹸﻋﻤﺎﻥ ﻭﺷﺮﻕ ﺍﻹﻣﺎﺭﺍﺕ‪ ،‬ﻭﻫﻮ‬
‫‪‬‬ ‫‪‬‬ ‫ﺍﻟﻄﻴﻮﺭ‪°١٦٢ = °٣٦٠ × ٠٫٤٥ :‬‬
‫‪‬‬ ‫‪‬‬ ‫ﺍﻟﺰﻭﺍﺣﻒ‪°٢٩ ≈ °٣٦٠ × ٠٫٠٨ :‬‬ ‫ﺃﻛﺜﺮ ﺍﻟﺜﺪﻳﻴﺎﺕ ﻋﺮﺿﺔ ﻟﻼﻧﻘﺮﺍﺽ‪.‬‬
‫ﺍﻟﺒﺮﻣﺎﺋﻴﺎﺕ‪°٢٢ ≈ °٣٦٠ × ٠٫٠٦ :‬‬
‫‪‬‬
‫ﺑﺴﺒﺐ ﺍﻟﺘﻘﺮﻳﺐ‪ ،‬ﻓﺈﻥ ﻣﺠﻤﻮﻉ ﺍﻟﺪﺭﺟﺎﺕ ﻳﺴﺎﻭﻱ ‪.°٣٥٧‬‬
‫ﺍﻟﺤﻴﺎﺓ ﺍﻟﺒﺮﻳﺔ ﻓﻲ ﺍﻟﻤﻤﻠﻜﺔ ﺍﻟﻌﺮﺑﻴﺔ ﺍﻟﺴﻌﻮﺩﻳﺔ‬
‫• ﺍﺭﺳﻢ ﺍﻟﻘﻄﺎﻋﺎﺕ ﺍﻟﺪﺍﺋﺮﻳﺔ‪.‬‬
‫‪www.saudiwildlife.com‬‬

‫‪% ٤٥ = ٠٫٤٥ ، % ٤٠ = ٠٫٤٠‬‬

‫‪% ٦ = ٠٫٠٦ ، % ٨ = ٠٫٠٨‬‬

‫‪ ‬ﺑﻌﺪ ﺭﺳﻢ ﺃﻭﻝ ﺛﻼﺛﺔ ﻗﻄﺎﻋﺎﺕ‪ ،‬ﻳﻤﻜﻨﻚ ﻗﻴﺎﺱ ﺯﺍﻭﻳ‪٦‬ﺔ‪٤‬ﺁ‪٧٤٠‬ﺧ‪٨‬ﺮ_ﻗ‪NA‬ﻄ_ﺎ‪A‬ﻉ‪١٠‬ﻓ‪٠٨-‬ﻲ‪C‬‬
‫ﺍﻟﺪﺍﺋﺮﺓ؛ ﻟﻠﺘﺤﻘﻖ ﻣﻦ ﺃ ﹼﻥ ﻗﻴﺎﺳﺎﺕ ﺍﻟﺰﻭﺍﻳﺎ ﺻﺤﻴﺤﺔ‪.‬‬

‫‪‬‬ ‫‪  ‬ﻳﺒﻴﻦ ﺍﻟﺠﺪﻭﻝ ﺍﻟﻤﺠﺎﻭﺭ ﻋﺪﺩ ﺍﻟﻤﻴﺪﺍﻟﻴﺎﺕ‬
‫‪‬‬
‫ﺍﻟﺘﻲ ﺃﺣﺮﺯﺗﻬﺎ ﺍﻟﺪﻭﻝ ﺍﻟﻌﺮﺑﻴﺔ ﻣﻨﺬ ﻋﺎﻡ ‪١٩٢٨‬ﻡ ﺣﺘﻰ‬
‫‪ ‬‬ ‫ﻋﺎﻡ ‪٢٠٠٨‬ﻡ ﻓﻲ ﺍﻷﻭﻟﻤﺒﻴﺎﺩ‪ .‬ﻣ ﱢﺜﻞ ﻫﺬﻩ ﺍﻟﺒﻴﺎﻧﺎﺕ‬
‫ﺫﻫﺒﻴﺔ ‪٢٢‬‬
‫ﺑﺎﻟﻘﻄﺎﻋﺎﺕ ﺍﻟﺪﺍﺋﺮﻳﺔ‪.‬‬
‫ﻓﻀﻴﺔ ‪٢١‬‬

‫ﺑﺮﻭﻧﺰﻳﺔ ‪٤٠‬‬

‫‪ ‬‬