Question

find the circumference of circle whose radius is 7.2cm with steps please​

Answer 1

$\large\sf\underline{☛\:Given}$

• Radius of a circle = 7.2 cm

$\large\sf\underline{☛\:To\:find}$

• Circumference of a circle

$\large\sf\underline{☛\:Solution}$

$\tt\pink{Circumference\: of\: a\: circle=2πr}$

$\tt\red{where\:r=radius}$

$\tt\red{and\:π=\frac{22}{7}\:or\:3.14}$

So substituting the value of r and π in the formula :

$\sf⇨\:2 \times \frac{22}{7} \times 7.2$

$\sf⇨\:2 \times \frac{22}{7} \times \frac{72}{10}$

$\sf⇨\: \frac{44}{7} \times \frac{72}{10}$

$\sf⇨\: \frac{3168}{70}$

$\huge\fbox\red{⇨\: 45.25 cm}$

• Hope it helps uh :)