Question

radius of a circle = 5.6 cm.Then the area and circumfrence = ?

Answer 1

Radius = 5.6 cm
$Area = \pi r^{2}$
                     = 98.56 sq.cm
$Circumference = 2 \pi r$
                      = 35.2 cm

Answer 2

given that Radius = 5.6 cm   
 then area =      πr2
=3.14 or 22/7 * (5.6 )²=98.4704 cm²    
circumference= 2πr
=2*3.14*5.6=35.168 cm