Question

Circumference of circle of diameter 2x is

Answer 1

Answer:

44x/7

Step-by-step explanation:

diameter = 2x

Circumference of circle=

$2\pi \: r$

so radius is half the diameter so r is x

2*22/7*x

= 44x/7

Answer 2

Step-by-step explanation:

circumference of circle=πd

C =22÷7 multiply by 2x

2x= 7 multiplied by 22 = 154

x = 154 ÷2 = 77

Therefore circumference of circle is 77cm