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The angle A of a triangle ABC is 20% less than the sum of other two angles. If angle C is (2)/(3) times angle B, then find the value of angle B.
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The angle A of a triangle ABC is 20% less than the sum of other two angles. If angle C is
(2)/(3) times angle B, then find the value of angle B.

User Ginnine
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7 votes
7 votes
60 degrees or pi/3 for radians
The angle A of a triangle ABC is 20% less than the sum of other two angles. If angle-example-1
User Mikael
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