Given 1 = 123° and 8 = 7z + 11.
What is the value of z, if lines a and b are parallel?
2 answers:
Answer:
z = 16
Step-by-step explanation:
Since a and b are parallel lines, then
∠ 1 and ∠ 8 are Alternate exterior angles and are congruent, thus
7z + 11 = 123 ( subtract 11 from both sides )
7z = 112 ( divide both sides by 7 )
z = 16
Answer:
z=16
Step-by-step explanation:
We know for sure that since A and B are parallel that 1, 4, 5, and 8 are equal.
So then the equation is simply 123=7z+11---> 7z=112----> z=16
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