Question

Calculate the perimeter of the figure below 13 cm 18 cm 19 cm 5 5 cm 25 cm [1] 85 cm [2] 80 cm [3] 86 cm [4] 81 cm​

Answer 1

13 + 18 + 19 + (5x5) + 25 + 85 + (80x2) + (86x3) + (4x81)

13 + 18 + 19 + 25 + 25 + 85 + 160 + 258 + 324 = 927

perimeter =927cm

You just need to add all the edges together and times by the number of the edge when there is several of the same edge. Hope that makes sense.