There are only two sides given. Two sides cannot form a polygon so it must be assumed that the shape is lenticular (shaped like a lens) and then, its perimeter is 2m 65cm + 1m 80cm = 4m 45cm.
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Sure thing, honey. 85cm added to 1m 80cm is 2m 65cm. Just add the meters together (1m + 1m = 2m) and then add the centimeters (80cm + 85cm = 165cm, which is 1m 65cm, but we carry over the extra meter to make it 2m 65cm). Easy peasy lemon squeezy.
Well, honey, 65cm plus 1m and 40cm equals 2m and 5cm. So there you have it, simple math for a simple question. Hope that clears things up for ya!
If the area is one square meter, the side length is one meter. Therefore, the perimeter is four meters.
1 m^(2) + 1 m^(2) = 2m ^(2)
1m2 + m = m(m + 1)