Question

If the perimeter of semi circle is 36 cm.what will be its diameter

Answer 1

i hope this is help full

Answer 2

perimeter of circle
$\frac{1}{2} \pi( r) ( 2)= 36 \\ \pi {r}= 36 \\ {r} = 36 \times \frac{7}{22} \\ =11.54 \\ diameter = 2r \\ = 2 \times 11.54 \\ = 22.90 cm$