Question

If the circumference of the circle is 132 M then calculate the radius and diameter take by is equal to 22 by 7

Answer 1

$\underline{\textbf{Given:}}$

$\textsf{Circumference of the circle is 132 m}$

$\underline{\textbf{To find:}}$

$\textsf{Radius and diameter of the circle}$

$\underline{\textbf{Solution:}}$

$\underline{\textbf{Concept used:}}$

$\boxed{\mathsf{Circumference\;of\;a\;circle\;of\;radius\;r=2\pi\,r}}$

$\textsf{Circumferernce of the circle=132 m}$

$\implies\mathsf{2\,\pi\,r=132}$

$\implies\mathsf{2{\times}\dfrac{22}{7}{\times}r=132}$

$\implies\mathsf{r=\dfrac{132{\times}7}{2{\times}22}}$

$\implies\mathsf{r=\dfrac{6{\times}7}{2}}$

$\implies\mathsf{r=3{\times}7}$

$\implies\boxed{\mathsf{r=21\;m}}$

$\mathsf{Diameter=2{\times}Radius}$

$\mathsf{Diameter=2{\times}21}$

$\implies\boxed{\mathsf{Diameter=42\;m}}$

Answer 2

Answer:

circumference of the circle=2πr=132

then

2×22/7×r=132

r=132×7/22×1/2

=3×7

=21

diameter=2r

=2×21

=42