A rectangular piece of land of dimensions $40 \mathrm{m} \times 60 \mathrm{m}$ is to be fenced $3$ rows of wire. 

What is the length of wire needed?

Raj has a square board of sides $10 \mathrm{cm}$. He removed two rectangular pieces from both sides, leaving a $2 \mathrm{cm}$ strip in the middle, to get the shape shown below.

The perimeter of the above shape is _____ $\mathrm{cm}$.

Alex took a rectangular sticker of area $50 {\mathrm{cm}}^2$ and a triangular sticker of area $14 {\mathrm{cm}}^2$ and joined them as shown below. The height of the triangle and the width of the rectangle are equal. Half the area of the triangle overlaps with the rectangle when the two shapes were joined.

The area of the resultant shape is _____ ${\mathrm{cm}}^2$