Question

The radius of a circular wire is 12cm, what length of a tap is required to wrap once around the wire

Answer 1

Answer:

so first you need to do this

Step-by-step explanation:

radius = 12

circumference (as it is the border) =2πR

                                  =as the pie value is  not given we will take this as 22 / 7

                                  = 2 * 22 * 12

                                           ----

                                             7

and this is the equation and solve it by ur self

Answer 2

$\star \; {\underline{\boxed{\pmb{\orange{\frak{ \; Given \; :- }}}}}}$

• Radius of Circular wire = 12 cm

$\star \; {\underline{\boxed{\pmb{\red{\frak{ \; To \; Find \; :- }}}}}}$

• Tape required to wrap it once = ?

$\star \; {\underline{\boxed{\pmb{\purple{\frak{ \; SolutioN \; :- }}}}}}$

$\dag$ Formula Used :

• ${\underline{\boxed{\pmb{\sf{ Circumference = 2 \pi r }}}}}$

Where :

• $\sf{ \pi = \dfrac{22}{7} }$

$\\ \qquad{\rule{150pt}{2pt}}$

$\dag$ Calculating the Tape Required :

${\dashrightarrow{\qquad{\sf{ Tape \; Required = 2 \pi r }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Tape \; Required = 2 \times \dfrac{22}{7} \times 12 }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Tape \; Required = \dfrac{44}{7} \times 12 }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Tape \; Required = \dfrac{528}{7} }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Tape \; Required = \cancel\dfrac{528}{7} }}}} \\ \\ \\ \ {\qquad \; \; {\therefore \; {\underline{\boxed{\pmb{\pink{\sf{ Tape \; Required = 75.42 \; cm \bigg\lgroup Approx. \bigg\rgroup }}}}}}}}$

$\\ \qquad{\rule{150pt}{2pt}}$

$\dag$ Therefore :

❛❛ Tape required to wrap the wire is 75.5 cm (Approx.) . ❜❜

$\\ {\underline{\rule{300pt}{9pt}}}$