Exercise $5\mathrm{.}5$ The distance between two points $($x$1,$ y$1)$ and $($x$2,$ y$2)$ is

Distance $=$

p

$($x$2$ x$1)$

$2+($y$2$ y$1)$

$2$

Please write a function named distance$()$ that takes four doubles as parameters$$x$1,$

y$1,$ x$2$ and y$2$and that prints the distance between the points.

You should first write a function called sumSquares$()$ that calculates and returns the

sum of the squares of its arguments. For example:double x $=$ sumSquares $(3\mathrm{.}0,4\mathrm{.}0)$;

would assign the value $25\mathrm{.}0$ to x$.$

The point of this exercise is to write a new function that uses an existing one. You

should first write the sumSquares function then use that function in your distance

function. Write a main function that tests each function