What is the area of a circle 10 inches in diameter?

1 Answer
Don't Memorise
Jul 31, 2015

#approxcolor(blue)(79# square inches.

Explanation:

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

The radius of the circle is , half the diameter = #d/2 = 10/2 = 5#inches

The area #= pir^2 = 3.14 xx (5)^2#

#=3.14 xx (25)#

#=78.5# square inches.

#approxcolor(blue)(79# square inches.

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