An abstract painting is a square of side
96 cm, and shows
three circles that
touch each other
and the sides of
the square. The top
two circles have the
same radius. What is
the radius of the third
circle?

27cm

Explanation:

24² + (72-r)² = (24+r)²

 576 + 5184 -144r +r² = 576 +48r +r²

 5184 = 192r

 5184/192 = r = 27cm

The gregorian chant was a major cultural milestone in the middle ages. it was one of the first codified forms of music meant to be played as written, where previously it was difficult to mass-produce and disseminate any music. what's more, these chants were also some of the first examples of musical notation: the notes and bars of today's music sheets are a reflection of centuries of evolution beginning with these chants. it became official throughout the entirety of the catholic church, meaning that nearly all of europe followed this musical notation and styling.

It is false my dude.