Question

find the perimeter of the protector if its diameter is 7cm

Answer 1

We know that r = d/2.

Perimeter of protractor formula  = pi * r + d

                                                       = (22/7 * 7/2) + 7

                                                       = 11 + 7

                                                       = 18 cm.

Answer 2

Answer:

Hay Guys!!!!

77/2

Step-by-step explanation:

perimeter of the protector is

$\frac{1}{2} \pi \: r \times d$

given r is 7/2

perimeter =1/2* 22/7 *7/2 *7

=77/2

Hope it may help you