Question

Circumference What is the circumstances Please help me and thnx u if u help me on this

Answer 1

$\Large \underline{\tt Given} :$

• Diameter of circle, d = 5.6 cm

$\Large \underline{\tt To \: Find} :$

• Circumference = ?

$\Large \underline{\tt Solution} :$

As, we have diameter of circle is 5.6 cm and radius is half of diameter.

$\tt : \implies Radius, r = \dfrac{d}{2}$

$\tt : \implies Radius, r = \dfrac{5.6 \: cm}{2}$

$\tt : \implies Radius, r = \dfrac{\cancel{56} \: cm}{10\times \cancel{2}}$

$\tt : \implies Radius, r = \dfrac{28 \: cm}{10}$

$\tt : \implies Radius, r = 2.8 \: cm$

Now, for Circumference :

$\Large \underline{\boxed{\bf{Circumference = 2\pi r}}}$

$\tt : \implies Circumference = 2 \times \dfrac{22}{7} \times 2.8 \: cm$

$\tt : \implies Circumference = \dfrac{44}{\cancel{7}} \times \dfrac{\cancel{28}}{10} \: cm$

$\tt : \implies Circumference = 44 \times \dfrac{4}{10} \: cm$

$\tt : \implies Circumference = \dfrac{176}{10}\: cm$

$\tt : \implies Circumference = 17.6\: cm$

Hence, circumference is 17.6 cm.

Answer 2

Answer:

35.19

Step-by-step explanation:

equation is : C=2πr