[area of a circle]=pi*r² r=5 in [area of a circle]=pi*5²---------> 78.5 in²
if 2pi radians ( full circle) has an area of-------------------> 78.5 in² 1.5 radians------------------------------------------> X X=1.5*78.5/2pi---------> 18.75 in²
the answer is the area of the sector formed by a central angle is 18.75 in²
