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<?php //php program to create two functions that find area and circumference of circle (radius of circle is passed to functions as argument) function area($radius) { $ar=3.14*$radius*$radius; print('area of circle is ' . $ar); } function circumference($radius) { $cir=2*3.14*$radius; print('circumference of circle is ' . $cir); } area(10); print('<br>'); circumference(10); ?>