The measure of central angle RST is it radians.
What is the area of the shaded sector?
4 units
8t units
16
units
20
units

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2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.

they lost control of territory in the middle east, but preserved turkey's political independence.