If you do this, make the shape into 2 shapes. Make the 10x14 piece a 10x9 by taking the 5cm off from the 14cm. This will make 2 rectangles. Then finding the area for the big box, so 10•(14-5) =90^2, or simply 10•9=90^2. Then taking the missing 6cm from the 10cm which makes 4cm, so mathematically, 5•(10-6)=20^2, or just 5•4=20cm^2. Next just adding the two together, making 110cm^2, or as the question says 110 squared cm.
