# A vertical tower OP stands at the centre O of a square ABCD. Let 'h' and 'b' denote the length OP and AB respectively. suppose (angle APB=60' then the relationship between 'h and 'b' can be expressed as:(a)2b² =h² (b)2h²=b² (c)3b²=2h² (d)3h²=2b²

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by rajhansh

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