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_DEF and _FEG are supplementary, m_DEF=(3x+5)*, and m_FEG=(2x)". What is the measure of DEF?


Sagot :

Answer:

110

Step-by-step explanation:

Supplementary angles add to 180

3x+5  +2x = 180

Combine like terms

5x +5 = 180

Subtract 5 from each side

5x = 175

Divide each side by 5

5x/5 = 175/5

x =35

DEF = 3x+5

    = 3*35 +5

   = 105+5

  = 110