Question 460840
In triangle ABC, m(AB) = 8, m(BC) = 16, m∠x = 90° FIND m∠A
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I'm sorry but we can't tell which angle is &#8736;x = 90° and where
the A, B, and C go.  Without that information we cannot solve
your problem.  Please post again, being careful to let us know
what letter is at the vertex of the angle &#8736;x.

Edwin</pre