## Elementary Technical Mathematics

$P= 25.76 cm$
From exercise 55, we know that $a = 4.56 cm$ and $b = 4.87 cm$. The perimeter is the sum of all the sides of the figure. So, $P= 4.56 cm + 3.45 cm + 1.87 cm + 4.87 cm + 2.69 cm + 8.32 cm$ $P= 25.76 cm$