Question 1201705
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We should not always blame the student for stating problems ambiguously.
Teachers are also often guilty.  Also to be exactly precise in English sometimes
requires so many words it bogs the problem down.  I think the most likely way
someone would take 'to join two right triangles" is tp put their right
angles together as a linear pair, since the right angles are the only MEASUREMENT
they automatically have in common. 
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