Question

AC=34,BA=20,angle ABC=60.find BC? ​

Answer 1

Hope it may help you

Answer 2

Using Pythagoras theorem:

$bc = \sqrt{ab ^{2} + {ac}^{2} } \\ bc = \sqrt{ {20}^{2} + {34}^{2} } \\ bc = \sqrt{1556} \\ bc = 39.4462$

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