Answer
The triangle is a right triangle with a hypotenuse of $25$ units.
Work Step by Step
A right triangle has three sides that satisfy the equation
$c^2=a^2+b^2$
where $c$ is the longest side (hypotenuse) and $a$ and $b$ are the two other sides.
Substitute the given lengths of sides to the equation above to obtain:
$c^2=a^2+b^2
\\25^2=7^2+24^2
\\625=49+576
\\625=625$
The triangle's side lengths satisfy the equation; therefore the triangle is a right triangle with a hypotenuse of $25$ units.
