Pragya wrapped a cord aroud a circular pipe of radius 4cm (adjoining figure) and cut of the length required of the cord. Then she wrapped it around a square box of side 4 cm (also shown). Did she have any cord left? `(pi=3.14)`

From each corner of a square of side 4 cm a quadrant of a circle of radius 1 cm is cut and also a circle of diameter 2 cm is cut as shown in Fig. 5.23. Find the area of the remaining portion of the square.

From a circular card sheet of radius 14cm, two circles of radius 3.5cm and a rectangle of length 3cm and breadth 1cm are removed (as shown in the adjoining figure. Find the area of the remaining sheet. (Take pi=22/7 )

A circle of radius 2cm is cut out from a square piece of a aluminium sheet of side 6cm. What is the area of the left over aluminium sheet? (Take pi=3.14 )

Shazli took a wire of length 44cm and bent it into she shape of a circle. Find the radius of that circle. Also find its area. If the same wire is bent into the shape of a square, what will be the length of each of its sides? Which figure encloses more area, the circle or the square? (Take pi=22/7)

In the given figure, Delta POR is an equilateral triangle of side 8 cm and D, E, F are centres of circular arcs, each of radius 4 cm. Find the area r shaded region. (Use pi = 3.14 and sqrt(3) = 1.732)