Two angles measure a-60° and 123-2a,°. If each one is opposite to equal sides of an isosceles triangle, find a
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since it is isosceles tiangle
a-60=123-2a
3a=123+60
3a = 183
a=183/3
a=61
a-60=123-2a
3a=123+60
3a = 183
a=183/3
a=61
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