Answer:
Basic fact:
angles in a point add up to 360
Step-by-step explanation:
20+165+33+90(that is the right angle)+x=360
20+165+33+90=308
308+x=360
-308
x=52
x = 52
Sum of angles around a point = 360
i.e,
=> 165 + 90 + 20 + 33 + x = 360
=> 308 + x = 360
=> x = 360 - 308
=> x = 52
