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Write the formula for angle

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Reference no: EM13134077

Sum of the angles in a triangle is always 180 degrees. Let A, B, C be the corners of a triangle and a, b, and c represent the angles at these corners respectively.

Write the formula for angle A in terms of the angels b and c. Also find a when b=20 and c =155 degrees.

Reference no: EM13134077

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