Question

A circular disc is of radius 7 cm. If the collection of circular discs of same radius are placed in a circular disc holder, then the length of the circular holder is ______.​

Answer 1

Answer:

Gɪᴠᴇɴ:-

• Radius 7cm

Tᴏ ғɪɴᴅ :-

• The length of circular holder

Sᴏʟᴜᴛɪᴏɴ:-

$\sf \: Radius \: of \: disc = 7 cm$

$\begin{gathered} \sf Perimeter \: of \: semicircular \: shape \: disc \: = πr+2r\end{gathered}$

$⠀⠀⠀⠀⠀⠀⠀⠀= \ \sf \frac{22}{7} \times 7 + 14=36cm$