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(i) It is given in the question that,

Length of land = 10

Breadth of land = 5

We know that,

Area of rectangle = Length × Breadth

∴ Area of whole land = 10 × 5

= 50 m²

(ii) Also, it is given in the question that:

The radius of flower bed = 2 m

We know that,

Area of flower bed = πr²

= 3.14 × 2 × 2

= 12.56 m²

(iii) Area of lawn excluding the flower bed = Area of whole land – Area of the flower bed

= 50 – 12.56

= 37.44 m²

(iv) We know that,

Circumference of circle = 2πr

∴ Circumference of flower bed = 2 × 3.14 × 2

= 4 × 3.14

= 12.56 m²