Question

find the circumference of the circle whose radius is 49cm​

Answer 1

Answer:

circumference is

$2\pi \: r$

2×22×49/7

2×22×7

308 cm

m@rk @s BRAINLIEST @nswer ple@se

Answer 2

Answer:

The circumference of the circle is $308$ cm.  

Step-by-step explanation:  

In context to the question asked,    

We have to find the circumference of a circle,  

As per data given in the question,    

We have,  

Radius ( r ) = $49$ cm  

For calculating the circumference of the circle,  

The formula to be used,  

Circumference of circle = $2\pi r$  

By substituting the values in the above formula,  

$=> 2\times \frac{22}{7}\times 49$

Now, expressing $(2\times \frac{22}{7})$ as a single fraction

$=> \frac{2\times 22}{7}\times 49$

Multiply $2$ and $22$ to get $44$,

$=> \frac{44}{7}\times 49$

Expressing $(\frac{44}{7}\times 49)$ as a single fraction

$=> \frac{44\times 49}{7}$

Multiply $44$ and $49$ to get $2156$,

$=> \frac{2156}{7}$

Divide $2156$ by $7$ to get $308$,

$=>308cm$  

Hence circumference of the circle is $308$ cm.