What is the area of a circle that has a diameter of 24?

1 Answer
Jul 31, 2015

Answer:

#approxcolor(blue)(452 cm^2#

Explanation:

The area of a circle is given by formula:
#color(blue)(pir^2#
Where,
#pi# has a constant value of #3.14#
#r# denotes the radius of the circle.

The radius of the circle is , half the diameter = #24/2 = 12cm# (assuming the unit to be in cm)

The area #= pir^2 = 3.14 xx (12)^2cm^2#

#=3.14 xx (144)#

#=452.16 cm^2#

#approxcolor(blue)(452 cm^2#