The perimeter of a semicircle is 72cm.what is the diameter

The diameter of the semicircle is 7 inch.

Step-by-step explanation:

So, diameter of the semicircle is 7 inch, whose radius is 7 inch. Therefore area of semicircle is 113.04 inch 2, whose diameter is 24 inch. So, circumference of semicircle is 21.98, whose radius is equal to 7 inch. So, arc length of a semi circle is 3.64 inch, whose radius is 7 inches and central angle is 60 degree.

0 = x+y -2

Step-by-step explanation:

The general form of a line is 0 = Ax + By + C  where A is a positive integer

First write it in slope intercept form

y = mx+b  where m is the slope and b is the y intercept

The slope is

m = (y2-y1)/(x2-x1)  (2,0) and (0,2)

   = (2-0)/(0-2)

   = 2/-2

   = -1

and the y intercept is 2

y = -1x +2

Subtract y from each side

0 = -x -y +2

Multiply by -1

0 = x+y -2