Question

the diameter of a circle is 12yd. find the exact area and circumference of the circle. write your answers in terms of pie

Answer 1

So,

The area of a circle is $A = \pi *radius^{2} \\and\\Radius = Diameter \div 2\\\\So\\A = \pi * 6^2\\\\A = 36\pi$

For Circumfrence

$C = \pi * diameter\\C = 12\pi$