Hello, hope this makes some sense, the midpoint formula is what’s given in the picture and the rest is just substitution
Help for a braineist if you get the answer right ;)
2 answers:
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Answer:
The unknown dimension is 35
Step-by-step explanation:
The perimeter of a rectangle is l+l+w+w or 2l+2w (l=length, w=width)
then we subtract 14 from 84
Let's check our answer
<u>Hope this helps :-)</u>