两个相同的正四棱锥底面重合组成一个八面体可放于棱长为1的正方体中重合的底面与正方体的某一个面平行各顶点均在正方体的表面上把满足上述条件 Sketch Coloring Page

两个相同的正四棱锥底面重合组成一个八面体可放于棱长为1的正方体中重合的底面与正方体的某一个面平行各顶点均在正方体的表面上把满足上述条件 Template

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tomski两个相同的正四棱锥底面重合组成一个八面体可放于棱长为1的正方体中重合的底面与正方体的某一个面平行各顶点均在正方体的表面上把满足上述条件 coloring

两个相同的正四棱锥底面重合组成一个八面体可放于棱长为1的正方体中重合的底面与正方体的某一个面平行各顶点均在正方体的表面上把满足上述条件 sketch template

两相同的正四棱锥组成如图所示的几何体可放棱长为1的正方体内使正四棱锥的底面ABCD与正方体的某一个平面平行且各顶点均在正方体的面上则 sketch template

已知正三棱锥P－ABC的底面边长为6，其内切球的半径为1，则此三棱锥的高为． sketch template

81 基本立体图形1 棱柱、棱锥、棱台湛江贵哥讲数学博客园 sketch template

正四棱锥图册 360百� sketch template

14．已知正四棱锥P ABCD的高为4侧棱与底面所成的角为600则该正四棱锥的侧面积是．——青夏教育精英家教�—— sketch template

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已知正四棱锥底面正方形的边长为4高与斜高的夹角为30°求正四棱锥的侧面积全面积体积．题目和参考答案——青夏教育精英家教�—— sketch template

$底面边长和侧棱长均为2的正四棱锥的体积为$frac{4sqrt{2}}{3}$．题目和参考答案——青夏教育精英家教�—— sketch template$

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81 基本立体图形1 棱柱、棱锥、棱台湛江贵哥讲数学博客园 sketch template

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正四棱锥的顶点都在同一球面上若该棱锥的高为6底面边长为4则该球的表面积为 A443πB4849πC814πD16π 题目和 sketch template

将两个各棱长均为1的正三棱锥和的底面重合，得到如图所示的六面体，则（ sketch template

如图已知两个正四棱锥P ABCD与Q ABCD的高分别为1和2AB=4 � 证明PQ⊥平面ABCD � 求异面直线AQ与PB所成的角 sketch template

如图已知两个正四棱锥P ABCD与Q ABCD的高分别为1和2AB=4 � 证明PQ⊥平面ABCD � 求异面直线AQ与PB所成的角 sketch template

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一个四棱锥的底面为正方形其直观图与三视图如图所示则二面角P DC A的正弦值为 ABCD——青夏教育精英家教�—— sketch template

有一个正六棱锥底面为正六边形侧面为全等的等腰三角形的棱锥底面边长为3cm高为3cm画出这个正六棱锥的直观图．题目和参考答案——青 sketch template

正四棱锥的顶点都在同一球面上若该棱锥的高为4底面边长为2则该球的表面积为A．B．C．D．题目和参考答案——青夏教育精英家教�—— sketch template

题目如图在四棱锥P ABCD中底面ABCD为平行四边形 PCD为等边三角形平面PAC⊥平面PCDPA⊥CDCD=2AD=3 sketch template

18．如图所示在四棱锥P ABCD中底面ABCD是一直角梯形∠BAD=90° AD∥BC AB = BC A AD 2a sketch template

正四棱锥 360百� sketch template

如图在四棱锥P ABCD中底面ABCD是矩形侧棱PA垂直于底面EF分别是ABPC的中点 1求证CD⊥PD 2求证 sketch template

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正四棱锥相邻两个侧面所成的二面角的平面角为α，侧面与底面的二面角的平面角为β，则2cosα Cos2β的值是A1B2C 1D 高考新都� sketch template

如图已知四棱锥P ABCDPA⊥平面ABCD底面ABCD为直角梯形∠A=90°且AB//CDAB=CD 1点F在线段PC上运动 sketch template

如图所示，底面边长为的正四棱锥被平行于其底面的平面高途 sketch template

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