Answer
13
Work Step by Step
To calculate distance between given points (0, 12) and (5, 0), we will use distance formula-
r = $ \sqrt { (x_{2} - x_{1}) ^{2} + (y_{2} - y_{1}) ^{2}}$
= $ \sqrt { (5 - 0) ^{2} + (0 - 12) ^{2}}$
= $ \sqrt { (5) ^{2} + (-12) ^{2}}$
= $ \sqrt {25 +144}$
= $ \sqrt {169}$
= 13
