Question

In the difference between the circumference and the radius of a circle is77. Find the

circumference of a circle.​

Answer 1

Step-by-step explanation:

Difference between circumference and radius of circle:

2πr-r= 77

r(2π-1)= 77

r = 77/2π-1

r= 77/2x3.14-1

r= 77/5.28

r= 14.58

circumference = 2πr

= 2x3.14x14.58 = 91.58

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Answer 2

Question:-

In the difference between the circumference and the radius of a circle is77. Find the circumference of a circle.

Answer:-

 ⟹circumference of circle = 2πr=77cm

 ⟹2*22/7*r=77

 ⟹r=77*7/2*22

 ⟹r=49/4

 ⟹D= 2r=2*49/4=49/2 cm or 24.5cm