Vivian L. answered • 09/10/15
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You can construct a right angle triangle using your coordinates (15, 11) and (3,20). Then, using a2+ b2= c2, you can find the distance between the coordinate points.
To find a: (15-3) = 12
To find b: (11-20) = -9
Therefore c= the square root of 144+81
Which is 15
So, 15 is the distance between the two points.
Andrew M.
There is a formula for the distance between between
Two points (x1,y1), (x2,y2)
d = √[(x2-x1)2 + (y2-y1)2]
for (15,11), (3,20)
d = √[(3-15)2+(20-11)2]
d= √[(-12)2+(9)2]
d = √(144+81)
d = √225
d =15
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09/10/15
Andrew M.
09/10/15