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In triangle ABC, the angles A, B, C form an arithmetic sequence. if A = 17 degrees, then what is angle C, in degrees?

 Dec 10, 2021
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In triangle ABC, the angles A, B, C form an arithmetic sequence. if A = 17 degrees, then what is angle C, in degrees?

 

A + B + C = 180

17 + (17 + d) + (17 + 2d) = 180

d = 43             ( d => common difference )

Angle C = 103 degrees

 Dec 12, 2021

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