If Line Segment AC Is Perpendicular To Line Segment CB And The Measurement Of Angle CBD Equals 125 Degrees, Then What's The Measurement Of Angle A?


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If ABD is a line segment then it is known that angle form by a line segment is 180o. If a line CB makes an angle CBD with AC and its measurement is 125o then the measurement of the other angle ABC will be 55o.
ABC is a triangle whose measurements are;
Angle ABC=55o
Angle ACD=90o     as lines AC and CB are perpendicular
Angle CAB= 180-55-90       sum of angles of triangle is 180
Angle A=35o

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