Answer:
78.50
Explanation:
if the Radius(not area) is 5, you would do this equation
A=πr^2
as in area=pi x radius^2
so you would simplify this into
A=(3.14)(5)^2
so then you would square 5 which becomes 25.
the problem should look like this:
A=(3.14)(25)
you would then multiply 3.14 by 25 which equals 78.50 or
A=78.50
then you would round to the nearest tenth and since 0<5 it would be 78.5 or
A=78.5
