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如图,将一副三角板如图所示叠放在一起,若AB=8cm,则阴影部分的面积是 cm2...
如图,将一副三角板如图所示叠放在一起,若AB=8cm,则阴影部分的面积是
cm
2.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193716221247682/SYS201311011937162212476013_ST/images0.png)
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比较大小:
3(填写“<”或“>”).
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如图,矩形ABCD中,AD=4cm,AB=3cm,动点P从点A开始沿边AD向点D以1cm/s的速度运动至点D停止,以AP为边在AP的下方做正方形AQEP,设动点P运动时间为x(单位:s),此时矩形ABCD被正方形AQEP覆盖部分的面积为y(单位:cm
2),则y与x之间的函数关系用图象表示大致是( )
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A.
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B.
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C.
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D.
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如图,在等腰梯形ABCD中,AB∥CD,对角线AC⊥BC,∠B=60°,BC=2cm,则梯形ABCD的面积为( )
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A.6 cm
2B.
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cm
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cm
2D.12 cm
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已知圆锥的母线长为6cm,底面圆的半径为3cm,则此圆锥侧面展开图的圆心角是( )
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如图,是反比例函数y=
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(k
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2-k
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A.1
B.2
C.4
D.8
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