Will give brainliest. 5 stars. And points!

Answer:
Step-by-step explanation:
To start, lets find the length and width of the diagram shown in the problem.
Length = 8 cm
Width = 4 cm
Now, we know that every 1 cm represents 20 meters. So, we can multiply both 8 by 20, and 4 by 20. 8 * 20 = 160. 4 * 20 = 80
So, our final answer for the garden in real life are below:
Length: 160 meters
Width: 80 meters
Hope this helps, if it does please mark brainliest! If not, feel free to ask any additional questions!