Question

in the figure given below, two circle, one inscribed and the other circumscribed are drawn to a square PQRS of a side a units. find the (i)area of shaded region ?​

Answer 1

$\huge\red{\boxed{\blue{\mathcal{\overbrace{\underbrace{\fcolorbox{blue}{aqua}{\underline{\red{ᴀɴsᴡᴇʀ}}}}}}}}}$

Let the radius of the outer circle be r.

∴ perimeter of outer circle = 2πr

But OQ=BC=r       [diagonals of the square BQCO]

∴ Perimeter of Square ABCD =4r

Hence, required ratio =4r2πr=2π

Answer 2

Hello hru ? i m f9 Kkrh ?

Specific examples of sliding friction include: Rubbing both hands together to create heat. A sled sliding across snow or ice. Skis sliding against snow. A person sliding down a slide is an example of sliding friction.