Answer:
The perimeter is 14 units
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Step-by-step explanation:
Given




Required
Determine the perimeter
To do this, we simply calculate the distance between the sides of the rectangle i.e. AB, BC, CD and DA.
Distance (d) is calculated using:

For AB
--- 
--- 

For BC
--- 
--- 

For CD
--- 
--- 

For DA
--- 
--- 

So, the perimeter (P) is:



<em>The perimeter is 14 units</em>
You just need to divide to get to 1n. -3n = 84
So the answer is 84/ -3 = -28. n= -28
Answer:
180 squred feet
Step-by-step explanation:
We simply multiply all three different areas of surfaces by two