Question

The radius of a protractor is 3.5 cm. Find the perimeter of this protractor.​

Answer 1

Answer:

18 cm

Step-by-step explanation:

Perimeter of protractor = π* 3.5 + 2*3.5

= 11 + 7

= 18 cm

Answer 2

Answer:

Diameter of the semicircular protractor =14cm

Radius =  

2

14

​  

cm=7cm

Perimeter of semicircle =πr+d

Perimeter of semicircular protractor =  

7

22

​  

×7+14=22+14=36cm

The perimeter of the semicircular protractor is 36cm.

Step-by-step explanation: