Step-by-step explanation:
Finally complement of the supplement of twice the angle 60°=90°-60°=30
60 degrees angle is an acute angle because it is less than 90 degrees. 60° in radians is π/3 and the measure of each angle of an equilateral triangle is 60°. Therefore, it is also called a 60-degree angle triangle.
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The answer of the question is C.13
X+(x+1)+(x+2)+(x+3)=114
x+x+1+x+2+x+3=114
4x+6=114
4x= 108
x=27
27, 28, 29, 30