一块梯形菜地的面积是48米2，上底是8米，下底是16米，这块菜地的高是多少米
\u4e00\u5757\u68af\u5f62\u83dc\u5730\u7684\u9762\u79ef\u662f48\u7c73 2 \uff0c\u4e0a\u5e95\u662f8\u7c73\uff0c\u4e0b\u5e95\u662f16\u7c73\uff0c\u8fd9\u5757\u83dc\u5730\u7684\u9ad8\u662f\u591a\u5c11\u7c7348\u00d72\u00f7\uff088+16\uff09\uff0c=96\u00f724\uff0c=4\uff08\u7c73\uff09\uff1b\u7b54\uff1a\u8fd9\u5757\u83dc\u5730\u7684\u9ad8\u662f4\u7c73\uff0e
\u68af\u5f62\u7684\u659c\u8fb9\u662f\u6cb3\u5cb8\u3002
48-12=36\uff08\u7c73\uff09\uff08\u4e0a\u8fb9\u548c\u4e0b\u8fb9\u4e4b\u548c\uff09
36x12/2=216\uff08\u5e73\u65b9\u7c73\uff09
=96÷24，
=4（米）；
答：这块菜地的高是4米．
绛旓細瑙ｏ細780梅48=16.25鍗冨厠 绛旓細姣忓钩鏂圭背鑳芥敹16.25鍗冨厠 濡傝繕涓嶆槑鐧斤紝璇风户缁拷闂傚鏋滀綘璁ゅ彲鎴戠殑鍥炵瓟锛岃鍙婃椂鐐瑰嚮銆愰噰绾充负婊℃剰鍥炵瓟銆戞寜閽 鎵嬫満鎻愰棶鐨勬湅鍙嬪湪瀹㈡埛绔彸涓婅璇勪环鐐广愭弧鎰忋戝嵆鍙
绛旓細涓婂簳+涓嬪簳+楂=48绫筹紝楂=20绫 鎵浠ヤ笂搴+涓嬪簳=28绫 闈㈢Н=锛堜笂搴+涓嬪簳锛壝楅珮梅2 = 28*20/2=280骞虫柟绫
绛旓細杩欒鐪嬪皬寰勬槸濡備綍鍒嗗竷鐨勬墠鑳借绠楀嚭鑿滃湴鐨瀹為檯闈㈢Н銆1銆佸皬寰勯暱涓48绫涓斿钩琛屾椂锛岃彍鍦伴潰绉=48*22*-48*2*2=864骞虫柟绫炽2銆佸皬寰勯暱涓22绫充笖骞宠鏃讹紝鑿滃湴闈㈢Н=48*22-22*2*2=968骞虫柟绫炽3銆佸鏋滃皬寰勬垚鍗佸瓧浜ゅ弶鐘舵椂鍒欒繕闇鍑忛櫎閲嶅彔閮ㄩ潰绉4骞虫柟绫筹紝杩欐椂闈㈢Н涓锛860骞虫柟绫虫垨964骞虫柟绫炽
绛旓細涓嬪簳 48梅2=24 楂 24-15=9 锛15+24锛壝9梅2脳10=1755鍗冨厠
绛旓細涓闈㈤潬澧欏叏闀48绫鐨勭绗嗭紝鏈澶у彲鍥存垚12x24骞虫柟绫崇殑鑿滃湴銆傛墍浠ヨ繖鍧楀湴鏈澶у彲浠ユ敹鐧借彍12x24x10=2880鍗冨厠銆
绛旓細璁惧涓簒 锛屽垯闀涓48锛2x 锛岄潰绉负s s 锛漻 (48锛2x)锛濓紞2(x 锛12)²锛144 闈㈢Н鏈澶у兼槸144 銕★紝鏈澶氬彲鏀1368鍗冨厠
绛旓細楂樻槸 1600x2梅(32+48)=3200梅80 =40绫 鏈涢噰绾筹紝璋㈣阿
绛旓細鏈涓鍧楄彍鍦帮紝鏄涓涓鐩磋姊舰锛楂樻槸20绫筹紝宸茬煡绡辩瑔闀48绫筹紝杩欏潡鑿滃湴鐨勯潰绉槸澶氬皯骞虫柟绫筹紵鏄繖閬撻涔 48-20=28锛圡锛28*20/2 =560/2 =280锛堝钩鏂圭背锛
绛旓細1 0 姊舰闈㈢Н=锛堜笂搴+涓嬪簳锛*楂/2 s=锛48+48+48+48锛*48/2 =4608骞虫柟绫 鎵闇鍖栬偉=4608*0.015=69.12鍗冨厠
绛旓細96x48x0.015=69.12 濡傛灉婊℃剰璁板緱閲囩撼鍝︼紒姹傚ソ璇勶紒(*^__^*) 鍢诲樆鈥︹
