Did British Empire and Brazil exist in the same era?

Yes, the two civilizations both existed around 1822 CE.

Which lasted longer, British Empire or Brazil?

British Empire lasted longer (414 years).

British Empire: Avrupa; Brazil: Güney Amerika

British Empire (1583 CE – 1997 CE) and Brazil (1822 CE – present) lived in the same era.

The empire with the most extensive territory in history. It was referred to as "the empire on which the sun never sets."

Federative Republic of Brazil · South America

Did British Empire and Brazil exist in the same era?: Yes, the two civilizations both existed around 1822 CE.
Which lasted longer, British Empire or Brazil?: British Empire lasted longer (414 years).
Which regions did British Empire and Brazil rule?: British Empire: Avrupa; Brazil: Güney Amerika