The adjoining figure represents a rectangular lawn with a circular flower bed in the middle. Find: (i) the area of the whole land (ii) the area of the flower bed (iii) the area of the lawn excluding the area of the flower bed

ABCD is a flower bed. If OA = 21 m and OC = 14 m, then find the area of flower bed.

A circular flower bed is surrounded by a path 4 m wide. The diameter of the flower bed is 66 m. What is the area of this path? (pi = 3.14)

Find (i) the curved surface area and (ii) the total surface area of a hemisphere of radius 21 cm.

In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find (i) the length of arc (ii) area of the sector formed by arc (iii) area of the minor segment formed by the arc.

Two cross roads, each of width 10 m, cut at right angles through the centre of a rectangular park of length 700 m and breadth 300 m and parallel to its sides. Find the area of the roads. Also find the area of the park excluding cross roads. Give the answer in hectares

A verandah of width 2.25 m is constructed all along outside a room which is 5.5 m long and 4 m wide. Find: (i) the area of the verandah. (ii) the cost of cementing the floor of the verandah at the rate of Rs. 200 per m^2