Create a solution that accepts any three integer inputs representing the base $(b1,b2)$ and height $(h)$ measurements of a trapezoid in meters. Output the exact area of the trapezoid in square meters as a float value. The exact area of a trapezoid can be calculated by finding the average of the two base measurements, then multiplying by the height measurement.

Trapezoid Area Formula:

$A=[\frac{b1+b2}{2}]***h$

The solution output should be in the format

Trapezoid area: area$\_$value square meters

$$

then the expected output is

Trapezoid area: $17\mathrm{.}5$ square meters

Alternatively, if the input is

$3$

$5$

$7$

Then the expected output is

Trapezoid area: $28\mathrm{.}0$ square meters