Find the distance between the points. Give an exact answer please of and an approximation to three decimal places.
What is the exact distance _______ and approximate distance _________ of (-9,11) and (-19,4)
What is the exact distance _______ and approximate distance _________ of (-24,-4) and (-25,-11)
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Consider two points (a,b) and (c,d). The distance d between these two points is given by;
`d = sqrt((a-c)^2+(b-d)^2)`
So moving on to our question we have two points (-9,11) and (-19,4).
`d1 = sqrt((-9-(-19))^2+(11-4)^2) = sqrt149 = 12.20655`
So the exact answer is `sqrt149`
Answer by approximation of 3 decimal places is 12.206
In the same way the distance between next points are as;
`d2 = sqrt50 = 5sqrt2 = 7.07107`
So the exact answer is `5sqrt2`
Answer by approximation of 3 decimal places is 7.071
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