已知斜三棱柱ABC-A1B1C1的侧面A1ACC1与底面ABC垂直.∠ABC=90°.BC=2.AC=2.且AA1⊥A1C.AA1=A1C. (1)求侧棱A1A与底面ABC所成角的大小, (2)求侧棱B1B和侧面A1ACC1的距离. 查看更多

 

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已知斜三棱柱ABC-A1B1C1的侧面A1ACC1与底面ABC垂直,∠ABC=90°,BC=2,AC=2
3
,且AA1⊥A1C,AA1=A1C.
①求侧面A1ABB1与底面ABC所成锐二面角的大小;
②求顶点C到侧面A1ABB1的距离.

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已知斜三棱柱ABC-A1B1C1的侧面A1ACC1与底面ABC垂直,∠ABC=90°,BC=2,AC=2数学公式,且AA1⊥A1C,AA1=A1C.
①求侧面A1ABB1与底面ABC所成锐二面角的大小;
②求顶点C到侧面A1ABB1的距离.

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已知斜三棱柱ABC-A1B1C1的侧面A1ACC1与底面ABC垂直,∠ABC=90°,BC=2,AC=2,且AA1⊥A1C,AA1=A1C.
①求侧面A1ABB1与底面ABC所成锐二面角的大小;
②求顶点C到侧面A1ABB1的距离.

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已知斜三棱柱ABC-A1B1C1的侧面A1ACC1与底面ABC垂直,∠ABC=90°,BC=2,AC=2,且AA1⊥A1C,AA1=A1C.
①求侧面A1ABB1与底面ABC所成锐二面角的大小;
②求顶点C到侧面A1ABB1的距离.

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已知斜三棱柱ABC-A1B1C1的侧面A1ACC1与底面ABC垂直,ÐABC=90°BC=2AC=2,且AA1^A1CAA1=A1C

    求:(1)侧棱AA1与底面ABC所成角的大小;

    2)侧面A1ABB1与底面ABC所成二面角的大小;

    3)顶点C到侧面A1ABB1的距离.

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