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How many acute angles are formed by the 4 intersecting lines shown?

 Sep 15, 2018
 #1
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Each vertical angle corresponding to 40°,50° and 60° will be acute....so that's 6

 

In addition...the angle between the 50° angle and the horizontal line will have measure of 180 - 50 - 60 - 40 = 30°

And its corresponding vertical angle will also have the same measure...so...

 

All 8 angles formed by the 4 intersecting lines will be acute will be acute

 

 

cool cool cool

 Sep 15, 2018
 #3
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Oops Sorry. That was a typo. I ment to say  "Why is the answer not 8?" I originally said 8 but it said I was wrong...

Lightning  Sep 15, 2018
 #2
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Oops Sorry. That was a typo. I ment to say  "Why is the answer not 8?" I originally said 8 but it said I was wrong...

 Sep 15, 2018
 #4
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It looks like Lightning does strike twice in the same place.

Guest Sep 15, 2018
edited by Guest  Sep 15, 2018
 #5
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??? Is this a insult? I accidently reposted on my post, not Chris'.

Lightning  Sep 15, 2018

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