Question

please help me with this question ​

Answer 1

Answer:

according to formula of parallel lines

sum of co-interior angles is 180°

sum of linear pair=180°

so, angles 1+2+3+4=360°

where angles 1=2=3=4=45°

so, angles 2+3=45°+45°=90°

so, angle P=(180-90)°=90°

so, angle APC is right angled i.e. 90°

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