in the following find the marked unknown anglegive step by step answer
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Answer:
55 is your answer
Step-by-step explanation:
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1
Answer:
Sum of three angles in triangle is 180°
45°+60°+y= 180°
y=105°
it's adjacent angle is 75°
then x+75°+20° = 180°
x=85°
so... answer is 85°
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