Page 26 - وحدة المضلعات او متوسط

‫‪C11-047A-874046‬‬ ‫‪ ‬ﺻﻨﱢﻒ ﺍﻟﻤﺜﻠﺚ ﺍﻟﻤﺸﺎﺭ ﺇﻟﻴﻪ ﻓﻲ ﺍﻟﺼﻮﺭﺓ‬
‫‪RV‬‬ ‫ﺑﺎﺳﺘﻌﻤﺎﻝ ﺍﻟﺰﻭﺍﻳﺎ ﻭﺍﻷﺿﻼﻉ‪.‬‬

‫ﺑﻤﺎ ﺃﻥ ﻟﻠﻤﺜﻠﺚ ﺯﺍﻭﻳﺔ ﻣﻨﻔﺮﺟﺔ ﻭﺿﻠﻌﻴﻦ‬
‫ﻣﺘﻄﺎﺑﻘﻴﻦ‪ ،‬ﻓﺈﻧﻪ ﹸﻳﺴﻤﻰ ﻣﺜﻠ ﹰﺜﺎ ﻣﻨﻔﺮﺝ‬
‫ﺍﻟﺰﺍﻭﻳﺔ‪ ،‬ﻭﻣﺘﻄﺎﺑﻖ ﺍﻟﻀﻠﻌﻴﻦ‪.‬‬

‫ﺻ ﱢﻨﻒ ﺍﻟﻤﺜﻠﺚ ﺍﻟﻤﺸﺎﺭ ﺇﻟﻴﻪ ﻓﻲ ﻛﻞ ﻣﻦ ﺍﻟﺼﻮﺭﺗﻴﻦ ﺃﺩﻧﺎﻩ ﺑﺎﺳﺘﻌﻤﺎﻝ ﺍﻟﺰﻭﺍﻳﺎ ﻭﺍﻷﺿﻼﻉ‪:‬‬
‫‪ ‬‬

‫‪640478-A050-11C‬‬ ‫‪640478-A940-11C‬‬ ‫‪‬‬
‫‪VR‬‬ ‫‪VR‬‬
‫ﻳﺴﺘﻌﻤﻞ ﺍﻟﻘﺮﻣﻴﺪ ﻟﺘﻐﻄﻴﺔ ﺃﺳﻄﺢ ﺍﻟﻤﻨﺎﺯﻝ‬
‫‪‬‬ ‫ﻓﻲ ﺍﻟﻤﻨﺎﻃﻖ ﺍﻟﺸﺪﻳﺪﺓ ﺍﻟﺒﺮﻭﺩﺓ؛ ﻭﺫﻟﻚ‬
‫ﻟﺨﺼﺎﺋﺼﻪ ﺍﻟﻌﺎﺯﻟﺔ ﻟﻠﺤﺮﺍﺭﺓ‪ .‬ﻭﺗﻜﻮﻥ‬

‫ﺍﻷﺳﻘﻒ ﺍﻟﻤﻐﻄﺎﺓ ﺑﺎﻟﻘﺮﻣﻴﺪ ﻣﺎﺋﻠﺔ ﺑﺰﺍﻭﻳﺔ؛‬
‫ﻟﺘﻨﺴﺎﺏ ﻋﻨﻬﺎ ﻣﻴﺎﻩ ﺍﻷﻣﻄﺎﺭ ﻭﺍﻟﺜﻠﻮﺝ‪.‬‬

‫‪ ‬ﺍﺭﺳﻢ ﻣﺜﻠ ﹰﺜﺎ ﻓﻴﻪ ﺯﺍﻭﻳﺔ ﻗﺎﺋﻤﺔ ﻭﺿﻠﻌﺎﻥ ﻣﺘﻄﺎﺑﻘﺎﻥ‪ ،‬ﺛﻢ ﺻ ﹼﻨﻔﻪ‪.‬‬
‫ﺍﺭﺳﻢ ﺯﺍﻭﻳﺔ ﻗﺎﺋﻤﺔ‪ ،‬ﺑﺤﻴﺚ ﻳﻜﻮﻥ ﺿﻠﻌﺎﻫﺎ ﻗﻄﻌﺘﻴﻦ‬

‫ﻣﺴﺘﻘﻴﻤﺘﻴﻦ ﻣﺘﻄﺎﺑﻘﺘﻴﻦ‪.‬‬

‫ﺻﻞ ﺑﻴﻦ ﻧﻬﺎﻳﺘﻲ ﺍﻟﻀﻠﻌﻴﻦ ﻟﺘﺸ ﹼﻜﻞ ﻣﺜﻠ ﹰﺜﺎ‪ ،‬ﻓﻴﻜﻮﻥ ﺍﻟﻤﺜﻠﺚ‬
‫ﺍﻟﻨﺎﺗﺞ ﻗﺎﺋﻢ ﺍﻟﺰﺍﻭﻳﺔ ﻭﻣﺘﻄﺎﺑﻖ ﺍﻟﻀﻠﻌﻴﻦ‪.‬‬

‫‪ ‬ﺍﺭﺳﻢ ﻣﺜﻠ ﹰﺜﺎ ﻓﻴﻪ ﺯﺍﻭﻳﺔ ﻣﻨﻔﺮﺟﺔ ﻭﺍﺣﺪﺓ ﻭﻻ ﻳﻮﺟﺪ ﻓﻴﻪ ﺃﺿﻼﻉ ﻣﺘﻄﺎﺑﻘﺔ‪ ،‬ﺛﻢ ﺻﻨﱢﻔﻪ‪.‬‬
‫ﺍﺭﺳﻢ ﺯﺍﻭﻳﺔ ﻣﻨﻔﺮﺟﺔ ﺑﺤﻴﺚ ﻳﻜﻮﻥ ﺿﻠﻌﺎﻫﺎ‬

‫ﻏﻴﺮ ﻣﺘﺴﺎﻭﻳﻴﻦ ﻓﻲ ﺍﻟﻄﻮﻝ‪.‬‬

‫‪848778_A50-01C‬‬ ‫ﺻﻞ ﺑﻴﻦ ﻧﻬﺎﻳﺘﻲ ﺍﻟﻀﻠﻌﻴﻦ ﻟﺘﺸ ﹼﻜﻞ ﻣﺜﻠ ﹰﺜﺎ‪.‬‬
‫ﻓﻴﻜﻮﻥ ﺍﻟﻤﺜﻠﺚ ﺍﻟﻨﺎﺗﺞ ﻣﻨﻔﺮﺝ ﺍﻟﺰﺍﻭﻳﺔ‪،‬‬
‫ﻭﻣﺨﺘﻠﻒ ﺍﻷﺿﻼﻉ‪.‬‬

‫ﺍﺭﺳﻢ ﻣﺜﻠ ﹰﺜﺎ ﻓﻲ ﻛﻞ ﻣﻦ ﺍﻟﺤﺎﻟﺘﻴﻦ ﺍﻵﺗﻴﺘﻴﻦ‪ ،‬ﺛﻢ ﺻ ﹼﻨﻔﻪ‪:‬‬

‫‪ ‬ﻣﺜﻠﺚ ﻓﻴﻪ ﺛﻼﺙ ﺯﻭﺍﻳﺎ ﺣﺎﺩﺓ‪ ،‬ﻭﺛﻼﺛﺔ ﺃﺿﻼﻉ ﻣﺘﻄﺎﺑﻘﺔ‪.‬‬
‫‪ ‬ﻣﺜﻠﺚ ﻓﻴﻪ ﺯﺍﻭﻳﺔ ﻭﺍﺣﺪﺓ ﻗﺎﺋﻤﺔ‪ ،‬ﻭﻻ ﻳﻮﺟﺪ ﻓﻴﻪ ﺃﺿﻼﻉ ﻣﺘﻄﺎﺑﻘﺔ‪.‬‬

‫‪  ‬‬