Question #ab8e4
1 Answer
Mar 7, 2017
Explanation:
The area (A) of a circle is found using.
#color(red)(bar(ul(|color(white)(2/2)color(black)(A=pir^2)color(white)(2/2)|)))#
where r is the radius.
#rArrA=pixx(2.5)^2=6.25pi" square units"larr" exact value"#
#rArrA≈19.63" to 2 decimal places"#
