Question

The circumference of the circle, if its radius is 7cm

a) 22cm b) 44cm c) 4.4cm d) 14cm​

Answer 1

Answer:

44cm

Step-by-step explanation:

radius=7cm .

circumference of the circle =2×22/7×radius

2×22/7×7=44cm

Answer 2

Given :

• Radius of circle = 7 cm

To find :

• Circumference of circle

According to the question,

We know,

• Circumference of circle = 2πr

Where,

• r = Radius of circle

Now,

$: \implies \sf{Circumference \: of \: circle = 2 \pi r}$

$: \implies \sf{Circumference \: _{of \: circle} = 2 \times \dfrac{22}{7} \times 7 }$

$: \implies \sf{Circumference \: _{of \: circle} = 2 \times 22}$

$: \implies{ \underline { \boxed{\sf{Circumference \: _{of \: circle} = 44 \: cm}}}} \: \red\bigstar$

$\therefore {\underline {\textsf{\textbf{Circumference of circle is 44 cm.}}}}$

• Hence, option b) is correct.