Triangle ABC is a right-
angled triangle.
ADB is a straight line.
DA = DC
Angle B...
![subject](/tpl/images/cats/mat.png)
Mathematics, 08.03.2021 15:20 clapoint2003p3chnu
Triangle ABC is a right-
angled triangle.
ADB is a straight line.
DA = DC
Angle BCD = 20°
Work out the size of the angle
marked x.
You must give reasons for each
stage of your working out
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Answers: 2
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