Question

3. If the perimeter of a semicircular protractor is 36 cm, find the diameter.

Answer 1

Answer:

52

Step-by-step explanation:

I think it's the answer

Answer 2

Perimeter of semicircular protractor=36 cm

πr+2r=36

⇒(π+2)r=36

⇒( 722 +2)r=36

⇒

7

36

r=36

⇒r=

36

36×7

⇒r=7

Therefore, diameter =2r=2×7=14 cm