Mathematics, 06.10.2020 19:01 montimcdaniel

In triangle DEF, m∠E is three times m∠D, and m∠F is 9 less than m∠D. What is the measure of each angle?

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In triangle DEF, m∠E is three times m∠D, and m∠F is 9 less than m∠D. What is the measure of each ang...

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