Question

Can you find the area and circumference of a circle given the radius or diameter?

Answer 1

C=pid
where C is the circumference
pi is pi
and d is diameter

Answer 2

area of a circle is
A=pir^2

where A is area
pi is pi
and r is radius

\[A=\pi(r ^{2})\]

Answer 3

diameter is also 2r
where r is the radius

Answer 4

So yes?

Answer 5

yes