What is the area of a circle with a diameter of 15m?

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Answer 1 · 2015-09-30T11:56:09

Use the formula #A=pi*r^2#

Area=#56.25*pi# #m# or #225/4*pi# #m# or approximately #176.7# #m#

The formula for the area of a circle is #A=pi*r^2#, where #A# is the area and #r# is the radius

The radius if half the diameter, so

#r=1/2*d#

#r=1/2*15m#

#r=7.5m#

Therefore,

#A=pi*r^2#

#A=pi*(7.5)^2#

#A=56.25*pi# #m# or #A~~176.7# #m# (correct to 1 decimal place)