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In the figure below, lines r and s are parallel. What is the measure of angle three? Explain how you know.
first, solve for x 10x = 4x+42
Okay, wait a moment please.
x=7 i think
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it is 7.
correct! then use the relation that : m<3 = 10x just plug x = 7 above
m<3 = 70
good job
So angle 3 is 70 degrees?
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yes
Thank you so much!
yw
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