From today's maths exam:
A: Prove AP = CH
B: AB = BC. Now prove APCH is a rhombus.
Very small hint:
Look for congruent triangles
Small hint:
You have to draw a line or two
Bigger hint:
What are the properties of cyclic quadrilaterals?
Hints needed: none
A took me ~20 mins, including writing the correct proof.
B took me 2 minutes, because I wasted way too much time in A and I had like every angle = some other angle![]()











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