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What is m∠1?

There is a horizontal line. Point B and D are lies on the line. There is one point C which is joined with point B and D to form a triangle CBD. The angle BCD is 70 degree. The angle CBD is denoted by 2. The supplementary angle of 2 is denoted by angle 1 which is line formed with segment BC. The line formed obtuse angle with CD is 130 degree.

A. 130°
B. 70°
C. 60°
D. 120°


Sagot :

Answer:

i think b

Step-by-step explanation: