Circumference of a semicircle?

2 pi r = circumference. 1/2 of that is pi x r. pi is 3.142

sorry ignore the second circumference

If the semicircle is placed on 1 side of the rectangle: Find the total perimeter(circumference) of the side opposite to the one with the semicircle's base and the 2 sides perpendicular to the...

(pi*radius)+diameter

u cant have circumference inside a circle inside of a circle is called area out side the circle its called circumference. If you are calculating the circumference the formula is...