In triangle ABC, angle C is a right angle, AB = 55, and BC = 30. Find angle B.

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In triangle ABC, angle C is a right angle, AB = 55, and BC = 30. Find angle B.

[From: ] [author: ] [Date: 11-09-09] [Hit: ]

Please help me and explain.. I really dont understand.
Thank you!

angle b=arccos(30/55) which is about 56.94 degrees

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