Question

3)If the difference between the circumference and the radius of a circle is 37 cm, then using π= 3.14 calculate the circumference (in cm) of the circle.​

Answer 1

Answer: 14 cm

Step-by-step explanation:

Let r be the radius of circle

Given that,

2πr−r=37

⇒r=  

2π−1

37

​

 

⇒r=  

7

44

​

−1

37

​

 

⇒r=7

so, area of circle = πr  

2

 

=π7  

2

 

=49πcm  

2