Respuesta :

Perimeter of a circle is 2*3.14*R, you have half circle so is (2*3.14*R)/2=3.14*R

Total perimeter is P=d+3.14*R

Where 3.14 is pi greco
whytes
To work this out we(hopefully you know how to find the circumference of a FULL circle which is 2piR
or pi x D)


ANSWER:
Pi ( i hope you know what it looks like ,look it up)

2piR
——— + D =P
2

The dashes are meant to be a line ❤️❤️