Answer:
Option B = 108 cm
Explanation:
Please refer the figure attached
As the given figure have four 90° angles,
AB = CH
BC = AH
So, AB = 30 cm , CH = 30 cm
BC = 15 cm, AH = 15 cm
Already given ED = FG = 5 cm, EF = 11 cm
Working note : As, AB = CH = 30 cm
CH = CD + 3cm + GH
30 = CD + 3cm + GH
CD + GH = 27 cm
Perimeter is the overall measure of the boundary of the given figure, ie
AB + BC + CD + DE + EF + FG + GH + AH
= 30 + 15 + CD + 5 + 11 + 5 + GH + 15
= CD + GH + 81
= 27 + 81
Perimeter = 108 cm