Alright, this figure may initially look challenging, but it can be broken down into much smaller, easier to digest, segments (Reference attached picture). First of all, the area formula of a rectangle/square is A = b*h. Let's break the figure into three separate shapes. The left hand rectangle is 5cm by 12cm. The middle rectangle is 5cm by 4cm. The right hand rectangle is also 5cm by 12cm. 5*12 = 60, 5*12 = 60, 5*4 = 20. 60cm^2 + 60cm^2 + 20cm^2 = 140cm^2 is the total area. Break shapes into pieces to make them easier C:
