Triangle abc was was transformed using the rule (x, y) (-y, x)
the vertices of the trangles are shown

Its in the national history museum and you can't se the original because its locked away in a vault 

Answerstratovolcanoes///near or in the ring of fire;

Just do the math, then think

Check -it can you examine advantages and drawbacks to possible solutions.check-it can you consider options to solve a problem.check-it can you persuade an audience to support a proposal.check-it can you identify the cause of a problem.