我想问一下棱台的三视图可以为矩形吗
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\u4ee5\u6b63\u4e09\u68f1\u53f0\u4e3a\u4f8b\uff1a
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绛旓細鐢涓夎鍥鐭ュ洓妫卞彴鐨涓娿佷笅搴曢潰閮芥槸姝ｆ柟褰紝涓婂簳闈㈣竟闀夸负1锛屼笅搴曢潰杈归暱涓2锛屾１鍙扮殑楂樹负2锛屼晶闈㈤兘鏄洿瑙掓褰紝鍏朵腑鏈2涓枩楂樹负2锛2涓枩楂樹负5锛屸埓鍑犱綍浣撶殑琛ㄩ潰绉疭=S涓+S涓+S渚=12+22+2脳1+22脳2+2脳1+22脳5=11+35锛涗綋绉疺=13脳锛12+22+1脳2锛壝2=143锛
绛旓細鐢涓夎鍥鐭ュ洓妫卞彴鐨涓娿佷笅搴曢潰閮芥槸姝ｆ柟褰紝涓婂簳闈㈣竟闀夸负1锛屼笅搴曢潰杈归暱涓2锛屾１鍙扮殑楂樹负2锛屼晶闈㈤兘鏄洿瑙掓褰紝鍏朵腑鏈2涓枩楂樹负2锛2涓枩楂樹负5锛屸埓鍑犱綍浣撶殑琛ㄩ潰绉疭=S涓+S涓+S渚=12+22+2脳1+22脳2+2脳1+22脳5=11+35锛涗綋绉疺=13脳锛12+22+1脳2锛壝2=143锛
绛旓細杩欓噷娌℃硶鎻忚堪鍟婏紝鎴戞槸瀛︾敾鐢荤殑锛屾鍏鍙板氨鏄鍏竟褰㈢殑鍦伴潰锛屼竴鐩磋繖鏍蜂笂鍘诲氨鏄備綘鍙互鍘诲缇庢湳鐨勭敾瀹ら噷闈㈢湅鐪嬶紝鏄釜绔嬩綋鍥
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绛旓細鎭㈠鍑哄巶璁剧疆鐨勬柟娉曢兘瀵硅繕鑷繁鎭㈠涓涓嬪氨琛屼簡濂涓夎鍥鎬庝箞鐢荤殑鐢昏繖涓敾杩欎釜涓滆タ鐢诲嚭鏉ョ殑闈炲父涓嶅鏄撶殑杩欏氨鏄
绛旓細璇曢鍒嗘瀽锛氱敱涓夎鍥鐭ワ紝鍑犱綍浣撲负鍥妫卞彴锛屼笂搴曞拰涓嬪簳鍒嗗埆鏄竟闀夸负1鍜2鐨勬鏂瑰舰锛岄珮涓2锛屼綋绉彲鐢变袱涓笁妫遍敟鐨勪綋绉樊姹傚緱锛 .
绛旓細B 鐢卞洓妫卞彴鐨勪笁瑙嗗浘鍙煡璇ュ洓妫卞彴鐨勪笂搴曢潰鏄竟闀夸负1鐨勬鏂瑰舰锛屼笅搴曢潰鏄竟闀夸负2鐨勬鏂瑰舰锛岄珮涓2.鐢辨１鍙扮殑浣撶Н鍏紡鍙煡璇ュ洓妫卞彴鐨勪綋绉 V 锛 (1 2 锛 锛2 2 )脳2锛 锛屾晠閫塀.
绛旓細姝ゆ鍥妫卞彴鐨涓婂簳闈㈣竟闀夸负2锛屼笅搴曢潰杈归暱涓4锛屼晶闈㈡褰㈢殑楂樻槸鈭2 鈭磋〃闈㈢Н=2²+4²+4脳(2+4)脳鈭2梅2 =4+16+12鈭2 =20+12鈭2
绛旓細鈭典富瑙嗗浘銆佸乏瑙嗗浘鏄煩褰㈠張鈭典刊瑙嗗浘鏄鍏竟褰⑩埓璇ュ嚑浣曚綋鏄叚妫辨煴鏁呴夛細A
绛旓細鍑犱綍鐗瑰緛锛氣憼涓婁笅搴曢潰鏄袱涓渾锛涒憽渚ч潰姣嶇嚎浜や簬鍘熷渾閿ョ殑椤剁偣锛涒憿渚ч潰灞曞紑鍥炬槸涓涓紦褰傦紙7锛夌悆浣擄細瀹氫箟锛氫互鍗婂渾鐨勭洿寰勬墍鍦ㄧ洿绾夸负鏃嬭浆杞达紝鍗婂渾闈㈡棆杞竴鍛ㄥ舰鎴愮殑鍑犱綍浣 鍑犱綍鐗瑰緛锛氣憼鐞冪殑鎴潰鏄渾锛涒憽鐞冮潰涓婁换鎰忎竴鐐瑰埌鐞冨績鐨勮窛绂荤瓑浜庡崐寰勩2銆佺┖闂村嚑浣曚綋鐨勪笁瑙嗗浘 瀹氫箟涓夎鍥撅細姝ｈ鍥撅紙鍏夌嚎浠庡嚑浣曚綋鐨...
