Question

what is the parameter of protractor

Answer 1

Heya mate....

we all know very well that protactor is a semicircled figure...

Thus its perimeter will be equal to the perimeter of a semicircle i.e.

{ ( 22r / 7 ) + 2r } cm

here r= radius....

Answer 2

Hey mate...☺✌☺
Perimeter of a protactor is
...

$22/7 × r+(2r)$

Answer .......
i hope its helpful....☺✌☺