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The consecutive angles of a particular trapezoid form an arithmetic sequence. If the largest angle measures \(120^{\circ}\), what is the measure of the smallest angle?

 Apr 23, 2021

Best Answer 

 #1
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Other angles sum up to 240$^\circ$

 

mean of all 4 numbers:360/4=90

 

120-90=30

 

Lowest number: 90-30=$\boxed{60}$

 Apr 23, 2021
 #1
avatar+570 
+1
Best Answer

Other angles sum up to 240$^\circ$

 

mean of all 4 numbers:360/4=90

 

120-90=30

 

Lowest number: 90-30=$\boxed{60}$

SparklingWater2 Apr 23, 2021

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