To find the perimeter, you find the length of each straight piece around the outside, and add them all up.
There are a few tricks that can be used to simplify the calculation of this particular figure that you attached. But it would be terribly confusing to try and explain the tricks in text here. So let's just do it together the old-fashioned way.
We'll start with the flat top, and go around from there to the right, one piece at a time:
Flat top . . . 39.9 Short right side of top bar . . . 5.4 Underpiece . . . . . half of (39.9 - 9.8) = 15.05 Right side of inside bar . . . (55.8 minus 5.4 on top end bottom ends) = 45 Upper surface of lower foot . . . half of (39.9 - 9.8) = 15.05 Short right side of bottom bar . . . 5.4
Up to this point, we've done exactly half of the perimeter. Everything that remains is an exact copy of what we've already done. So let's just add up the six lengths listed, and double that figure.
The total of the six lengths listed above is 125.8 .
The perimeter of the whole figure is (2 x 125.8) .
I think I saw an earlier question on Brainly, that was deleted because it consisted only of a short mysterious statement and a weird number. I suspect that you posted that question, and that the weird number in it was the correct answer to this perimeter problem.
