Question

if c= 616cm then find its radius and circumference

Answer 1

C=2πr
616=2×22/7×r
616×7/44=r
98cm=r


Circumference=616cm

Answer 2

Answer

98Cm , 616Cm

Given ,

Circumference of circle is 616Cm .

Find ,

what is the radius of circle and it's circumference.

Solution -

First we find radius of circle.Using formula circumference of circle .

From the properties of circles taking the formula.

Circumference of circle equal to $2\pi r$.

$circumference \: = 2\pi r \\ \\ in \: the \: question \: given \: \\ circumference \: of \: circle \: = 616cm \\ \\ now \: putting \: the \: value \\ \: and \: find \: radius \\ \\ 616cm \: = 2\pi r \\ \\ 616 = 2 \times \frac{22}{7} \times r \\ 616 = \frac{44}{7} \times r \\ \\ r = 616 \times \frac{7}{44} \\ \\ r = \frac{616 \times 7}{44} \\ \\ r = \frac{ \cancel{616} \times 7}{ \cancel{44}} \\ \\ r \: = 14 \times 7 \\ \\ = 98cm$
And the circumference is 616 Cm.

Therefore the Radius of circle is equal to 98Cm.and there circumference is equal to 616 Cm.

be brainly