Total cost of fencing the park shown in Fig. 6.17 is Rs 55000. Find the cost of fencing per metre.

In the above question, how many square metres of cloth is required to cover all the display boards? What will be the length in m of the cloth used, if its breadth is 120cm?

What is the length of outer boundary of the park shown in Fig. 6.16? What will be the total cost of fencing it at the rate of Rs 20 per metre? There is a rectangular flower bed in the center of the park. Find the cost of manuring the flower bed at the rate of Rs 50 per square metre.

In Fig. 6.18 each square is of unit length

(a) What is the perimeter of the rectangle ABCD?

(b) What is the area of the rectangle ABCD?

(c) Divide this rectangle into ten parts of equal area by shading squares.

(Two parts of equal area are shown here)

(d) Find the perimeter of each part which you have divided. Are they all equal?

Rectangular wall MNOP of a kitchen is covered with square tiles of 15cm length (Fig. 6.19). Find the area of the wall.