Relationship of circles and polygons

NO, you don't know that yet. Can you see that angle POX and angle QOY are the same size since they are "vertically opposite", ie opposite angles in an X-shape. You would have learnt about them before, I'm sure.
 
Ok, so NOW we can say that angle PXO and angle QYO must be the same (because if two angles in one triangle are the same as two angles in the other, then the third angles must be the same too (so that they both add to 180)).
 
Harry_the_cat said:
NO, you don't know that yet. Can you see that angle POX and angle QOY are the same size since they are "vertically opposite", ie opposite angles in an X-shape. You would have learnt about them before, I'm sure.
Click to expand...
yes vertices I think I have learnt it
 
So, NOW we can say that the two triangles are similar (because of AAA).

Writing the triangles in the corresponding order (to match the equal angles), we can say that triangle POX is similar to QOY,
 
Harry_the_cat said:
Ok, so NOW we can say that angle PXO and angle QYO must be the same (because if two angles in one triangle are the same as two angles in the other, then the third angles must be the same too (so that they both add to 180)).
Click to expand...
angle Q and P is the same right
 
Harry_the_cat said:
So, NOW we can say that the two triangles are similar (because of AAA).

Writing the triangles in the corresponding order (to match the equal angles), we can say that triangle POX is similar to QOY,
Click to expand...
So reason is they are similar angle or AAA?
 
So triangle POX is similar to triangle QOY ( matching up the order according to the equal angles)
 
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