Find the area of a circle with a radius of 3mm.

With explanation, please

9pi

Step-by-step explanation:

Area of a circle is pi*r^2, there is not much of an explanation here, its more of a formula you must remember.

pi can be estimated to be 3.14 if you want to, Im not sure what your teacher prefers. You can plug it into a calculator and get a better approximation or you could write the pi symbol.

(3.14)*(3mm)^2 = 28.27mm^2 or simply 9pi

1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply