一个三角形的高是15厘米，与一个边长是15厘米的正方形的面积相等，这个三角形的底是______厘米．A.7.5B.15C.30

一个三角形的高是15厘米，与一个边长是15厘米的正方形的面积相等，这个三角形的底是______厘米．A.7.5B.15C.30

C解析分析：根据正方形的面积公式S=a×a求出正方形的面积，即三角形的面积；再由三角形的面积公式S=ah÷2，知道a=2S÷h，由此即可求出三角形的底．解答：15×15×2÷15，=450÷15，=30（厘米），答：三角形的底是30厘米，故选：C．点评：本题主要是灵活利用三角形的面积公式和正方形的面积公式解决问题．

我好好复习下

She Makes Me Wanna 是英国型男组合JLS（摇摆不定男孩）的一首舞曲，同时还有Dev的精彩加盟，使得整首歌曲充满活力！ 歌词 Oh oh oh oh oh oh Ok Its Dev and JLS JLS Oh oh oh oh oh oh Yeah Oh oh oh oh oh oh I cant explain what's gotten into me My sanity is in the passenger seat I let her drive me she is my guide We're flying reckless tonight Direct me to the floor And turn it up some more Imma get it on on on on Direct me to the floor And turn it up some more Imma get it on on on on She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh London to jamaica La to africa She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh I think her eyes are hypnotizing me Something about her turns me into a wild beast I mesmerized, down for the ride Flying reckless tonight Direct me to the floor And turn it up some more Imma get it on on on on Direct me to the floor And turn it up some more Imma get it on on on on She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh London to jamaica La to africa She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh Well that's kind of funny I-i was just thinking The high you make me oh-oh-oh we’re flying over buildings Sitting under palm trees drinking bubble gum drinks We’re counting all our monies Dancing in ice rinks Buying icies (it’s nothing) We’re loving We’re worthy of this Look where I come from Now this world our kingdom She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh London to jamaica L.a to africa She makes me wanna Oh oh oh oh oh oh Makes me wanna Oh oh oh oh oh oh

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