How to find area of a circle inside a square with side 4?

1 Answer
Aug 1, 2015

Answer:

#=color(blue)(12.56cm^2#

Explanation:

When a circle is completely inscribed within a circle, the radius of that particular circle is half the side of the square.

So in this case:
The radius: #r=4/2 = 2cm# (assuming the unit to be in cm)

Area of a circle is given by formula:
#color(blue)(pir^2#
Where #pi# is of constant value #3.14#

So, area #color(blue)(pir^2) = 3.14 *(2)^2#
#=color(blue)(12.56cm^2#