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    题型:解答题 难度系数:0.65 引用次数:2097 更新时间:2018/09/21 04:32:18 题号:6906568
    已知圆锥的顶点为,底面圆心为,半径为

    (1)设圆锥的母线长为,求圆锥的体积;
    (2)设,、是底面半径,且,为线段的中点,如图.求异面直线所成的角的大?。?/div>
    类题推荐
    【推荐1】已知三棱柱eqId9881c5faa5cb449bb37fa59b41c76e43(如图所示),底面eqId89fbdcb029be4482b52165366491c70f为边长为2的正三角形,侧棱eqIdc9da58267ea84edda9dce8dba1a0a6a6底面eqId89fbdcb029be4482b52165366491c70f,eqIda8a130c7b8544e9d8b5f3ff2aa2bb97e,eqId93cbffaa5ae045d6ac45d1e979991c3aeqIdbd70ef61616a454bae30f5691884094b的中点.
    figure
    (1)求证:eqIdf7dc88da7f064e57870260332912743f平面eqIdb673a15fd24e455ba04b7615edb41220;
    (2)若eqId92869ac114124367b45f631d030ed6bdeqId31581e8b21734ef88d2a14232de7e7a6的中点,求证:eqId6eaf3ecc5362460383b6633afc9fff44平面eqId227f5b5400174e55ad063cfd2f95d019;
    (3)求三棱锥eqId3af7e2ddcd3e4bcaa715880db6010909的体积.
    难度系数:0.85使用:255次题型:解答题更新:2019/7/27
    【推荐2】如图,在直三棱柱eqId2cf3aba311bf4a0ca1b06fb7551ddcaf中,eqId532e65ee0ed041878ca0c61b0c554e60,eqId1fec314040fa47cdb7ab2439055ba613.
    figure
    (1)求证:eqIde2a08563fb0140d3b16360de6f7d6c7a平面eqId076f835a1f2c428898c79204bd1d52fd;
    (2)若点eqId06e60c1a2261437ba646a9bc18a212b1在线段eqId1dcb20a9ce8d4076af5dd64f7066c6d6上,且eqId2c51f5050ef9490b92503c9d8a238b34,求三棱锥eqId89f3214617264b69b5f3b88ab8582108的体积.
    难度系数:0.94使用:223次题型:解答题更新:2019/7/15
    【推荐3】如图,在多面体eqId74d080b0aa784255b498ec85794edfc9中,eqId6bcdd2ee36c54403b8981b3d682dcf55,eqIdeecb96c84ba340069d573f6c1caefbbb,eqIde3f335a045d1445aa2c0d7ae7a366feb平面eqId5ce7a06ae7a34393b92b5277978ac014,eqIdaaa4115ecd794c9ab5beffd8778484f7,eqIde25d66c179be41d8b5e2cbbd184f52a2,eqId0526c6ee7d2045308181c9d9621a2b56
    figure
    (Ⅰ)求证:eqIda8ca4af417544ec2bdc77992ba7477fa;
    (Ⅱ)求三棱锥eqIdafc38ccafeaf40b4b226f2ece60065fd的体积.
    难度系数:0.65使用:258次题型:解答题更新:2019/7/2
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