A same meaning or not problem:
Thus a regular polygon is a tangential polygon .
Regular polygon is thus a tangential polygon .
****
[A]: yes

A same meaning or not problem:
It is found in the Himalayas , from Kashmir through Nepal , southern Tibet and Sikkim to Bhutan .
It is found in the Himalayas , from Kashmir through Tibet , South Nepal and Sikkim to Bhutan .
****
[A]: no

A same meaning or not problem:
The Austin Catholic Academy and St. Thomas of Villanova College are officially sponsored and are not operated independently of the Augustinian Order .
Of these , Austin Catholic Academy and St. Thomas of Villanova College are officially sponsored and not independently operated by the Augustinian Order .
****
[A]: yes

A same meaning or not problem:
I tried to buy it when Roy Abernethy ( later Michigan Governor ) and George Romney run AMC .
I 've tried to buy it when George Romney ( later governor of Michigan ) and Roy Abernethy AMC were running .
****
[A]:
no