I have no idea what your line
42pi C=pi*d=pi.pi*42=42pi.
is supposed to say or mean.
Are you saying the
C = 42π ??
in that case the radius would be 21 units
and the answer is in exact form
now if we use the approximation of 22/7 for π
we get C = 42(22/7) = 132
42π expressed as a decimal correct to 6 decimals would be 131.946892
Find the Circumference.
a) Give an exact answer in terms of pi.
42pi C=pi*d=pi.pi*42=42pi.
Use pi~22/7,and express your answers as a fraction in lowest terms.
1 answer
1 answer