StevenXClontz’s Twitter Archive—№ 4,044

@Cshearer41 Let x be the small quarter circle radius & y be the semi circle radius. Note 2x+2y=12→x+y=6. A=¼πx²+¼π(x+2y)²-½π(y)² =½πx²+πxy+½πy² =½π(x+y)² =18π