Answer:
28 cm
Explanation:
to find perimeter you need to add all the sides together
this one has two sides with 8 cm and 2 sides with 6 cm
8 + 8 + 6 + 6= 28
A - 20 cm
6/2 = 3 cm
8/2 = 4 cm
using pythagoras
3^2 + 4^2 = x^2
x^2 = 25
x = 5 cm
perimeter = 5 + 5 + 5 + 5 = 20 cm
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