Find the value of x?

ABCD is a parallelogram. Find the value of x?

In the figure, B is the center of a quarter circle and ABCD is square with AD=5cm. Find the area of shaded region? (Use  $\pi=3$  )

Find the area of circle? (  $\pi=3$  )

FIND THE CIRCUMFRENCES OF THE CIRCLE? ( $\pi=3$  )

FIND THE SHADED AREA OF THE CIRCLE {RING}?(  $\pi=3$  )

FIND THE CIRCUMFRENCES OF THE CIRCLE?(  $\pi=3$  )

Find the area of the circle? ( $\pi=3$  )

Find the area of the circle?( $\pi=3$  )