Question

1. If the perimeter of a semi-circular protractor is 36 cm, then its diameter is​

Answer 1

Step-by-step explanation:

your answer is 14

it will help u

Answer 2

Answer:

14 cm

STEP BY STEP EXPLANATION:

Perimeter of semicircular protractor=36 cm

πr+2r=36

⇒(π+2)r=36

⇒(

7

22

+2)r=36

⇒

7

36

r=36

⇒r=

36

36×7

⇒r=7

Therefore, diameter =2r=2×7=14 cm