फाइंड मेजर ऑफ द अननोन एंगल्स इन द फॉलोइंग फिगर
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11
Answer:
x = 138°
Step-by-step explanation:
exterior angle x = 60° + 78° ( exterior angle property )
therefore x = 138°
hope it helps you.
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Answered by
1
138 is the correct answer
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