What is the meaure, in degrees, of the angle marked B? show work
In the following figure, the base of a triangle has been extended to the right as shown. What is the measure, in degrees, of 1? ( second picture) and show work!
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142 and 53
Step-by-step explanation:
1) external angle of a triangle=sum of the two opposite angles
B=77+65=142
2)1+127°=180[straight angle]
1=180-127=53
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0
Answer:
Step-by-step explanation:
Angle on a straight line is 180°
Therefore
Angle 1 + 127 =180°
Angle 1 = 53°
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