How similar are Polish and Ukrainian?

Ukrainian And Russian: How Similar Are These Two Slavic Languages?

Which Language is Easier: Polish vs. Russian [An Overview]

How similar are Polish, Czech, Slovakian, and Ukrainian to each other as languages? - Quora

What are some similarities of Polish and Ukrainian culture? - Quora

Is Polish similar to Ukrainian?

How similar are Polish and Ukrainian?

Similarities Between Ukrainian and Polish

How similar are Ukrainian and Polish? - Quora

More than one Ukrainian in four speaks Polish, new survey finds - Euromaidan Press

I've heard that Belarusian is more similar to Polish or Ukrainian than it is to Russian. Is this true? - Quora

Language protection: what Ukraine can learn from three European countries - Euromaidan Press