The diameter of a circle is 4 ft. Find its area in terms of \piπ.
2 answers:
Answer:
4π ft.
Step-by-step explanation:
the formula for the area of a circle is:
A = πr^2 (r is radius)
if the diameter is 4ft, then the radius is 2 ft
then you substitute the 2 in the formula
A = π2^2
A = π * 4
A = 4π
Hope this helps :)
Answer:
4pi
Step-by-step explanation:
area of a circle is pi*r^2
and you have diameter of 4
so 4/2 gives radius which is 2
A = pi*2^2 = 4pi
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