Recall that

triangle.py defines a function named area$\_$hero. The code below results in an error:

NameError: global name 'area$\_$hero' is not defined. Rewrite the return statement so that area$\_$hero is called correctly.

import triangle

def area$($sidelength$)$:

$\text{'}.\text{'}($number$)$ float

Return the area of an equilateral

triangle with sides of length sidelength.

$$ area $(5)$

$10\mathrm{.}825317547305483$

$\text{'}\text{'}\text{'}$

return area$\_$hero$($sidelength$,$ sidelength, sidelength$)$