qgis - Polygon in specific size

I have the task of inserting a polygon in a map with a specific size. My idea is to simply "draw" a polygon and keep on enhacing its size, until it reaches the size I actually want to be. Its basically an easy task, but i'm wondering if i could directly have the polygon in the size i want it to be. I went through the vector-tools, but nothing seemed to do the trick. I'm using QGIS 2.18.3 (Las Palmas)

Answer

You can use QAD Plugin to draw a regular polygon with a specific area. For example, if you want to draw a polygon with an area of 50000 square meter you can do the following:

1. Select regular polygon as you can see below:



2. Specify the number of edges at the command line below (I chose 6), and click enter


3. Specify Center of the polygon or Edge: clicked on target position on the screen


4. Enter an option [Inscibed in Circle/Circumscribed about circle/Area]: Choose Area


5. Enter the polygon area: Choose the specific area you want, 50000 for example