Question

What is the perimeter of a square abcd if a(0,0 and b(0,5?

Answer 1

Answer:  The perimeter of this square is:  " 20 units " .
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Explanation:
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A square has all 4 sides of equal length.  From the information given, we know that one side length has "5 units".  Thus, all the side lengths are "5 units".

       The formula/equation for the perimeter of a rectangle (which would include a square; since ALL squares are rectangles):
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   P = 2L + 2w ; 
                      in which:  P = perimeter; 
                               L = length = 5 units; 
                               w = width  = 5 units;
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So we plug in our known values; to solve for the perimeter, "P" ;
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         P = 2*5  + 2*5  = 10 + 10 = 20 units.
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Alternately,  since this is a square, and we know that a square has all four side of equal length (and we know that each side length of this square is "5 units";  and the "perimeter" equals the sum of the lengths of all the sides:

We can calculate the "perimeter" as follows:  5 units * 4 (sides) = 20 units.
       Or, perimeter = 5 + 5 + 5 + 5 = 20 units.
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Answer:  The perimeter of this square is:  " 20 units " .
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Answer 2

So squares have 4 congruent sides. When you plot the points (0,0) and (0,5) the side length is 5 units. We can then take 5+5+5+5 and know the perimeter is 20 units.