[alvin2008]

I have four circles of radius 14 cm. if I arranged it in two rows (two circles in each row). Just I want to find the perimeter of that figure. How can I find it

[galactus]

If I am picturing it correctly, the four circles are inscribed in a square of side length 54. The perimeter would then be 4 times that.

[ebaines]

I think the OP is asking about the exterior perimeter of an object that is formed by four circles - as illustrated in the attached figure.

[jaybill]

I realize this question is two years old, but I didn't realize that until I had already typed out the answer. Maybe it will help someone else some day.

1. First, find the circumference of one of one of the circles. π * diameter, so in your case, that's 14 * π = 43.98 (or so)
2. 75% of each circle makes up the shape, so you multiply your circumference (43.98) by 75%, which is 32.98 (roughly)
3. You then take that number and multiply by 4, for the four circles, so 32.98 * 4 = 131.94, which is the perimeter.

[ebaines]

jaybill: not quite right. The OP said the circles have radius = 14 cm, so the perimeter of each circle is cm. Multiply by 3/4 and then by 4 to get 263.9 cm