3 years ago

What is the measure of angle 1? 20° 42° 138° 160°

Mathematics

2 answers:

nikdorinn [45]3 years ago

8 0

Step-by-step explanation:

line s || line t

r is the transversal,

Therefore,

(7x-2)°= (6x+18)° {exterior alternate angles}

7x-6x=18+2

x=20°

r is also a straight line,

therefore,

7x-2+angle1=180° (straight angle)

7x-2+ angle1=180°

7(20)-2+ angle 1= 180°

140°-2+ angle 1= 180°

angle 1= (180-140+2 )°= 42°

angle 1= 42°

RoseWind [281]3 years ago

7 0

Answer:

the answer is 42

Step-by-step explanation:

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