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The measures of the three angles of a triangle form an arithmetic sequence. What must be the measure, in degrees, of the other two angles, if one angle is 90 degrees?

 Dec 15, 2021
 #1
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The sequence is 30, 60, 90 

 Dec 15, 2021
 #2
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Guest is right, 30, 60, 90 is the answer.

 

180 - 90 = 90

The two other angles have to equal 90 degrees and form an arithmetic sequence. 30, 60, 90 is the only sequence that fits both conditions.

 

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 Dec 16, 2021
edited by AlgebraGuru  Dec 16, 2021

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