What is the distance between points (21, -32) and (-3, -25)?

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asked Jan 21, 2019 165k views

3 votes

What is the distance between points (21, -32) and (-3, -25)?

Mathematics
middle-school

Sung Kim asked

by Sung Kim

7.8k points

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1 Answer

6 votes

Use the formula:

$A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=√((x_B-x_A)^2+(y_B-y_A)^2)$

We have:

$A(21;\ -32);\ B(-3;\ -25)$

substitute

$|AB|=√((-3-21)^2+(-25-(-32))^2)=√((-24)^2+7^2)\\\\=√(576+49)=√(625)=25$

Answer: 25 units.

Nickmancol answered Jan 26, 2019

by Nickmancol

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