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प्रश्न
The adjoining figure represents a rectangular lawn with a circular flower bed in the
middle. Find:
1) the area of the whole land
2) the area of the flower bed
3) the area of the lawn excluding the area of the flower bed
4) the circumference of the flower bed.
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उत्तर
1) Area of whole land = Length × Breadth = 10 × 5 = 50 m2
2) Area of flower bed = πr2 = 3.14 × 2 × 2 = 12.56 m2
3) Area of lawn excluding the flower bed = Area of whole land − Area of flower bed
= 50 − 12.56 = 37.44 m2
4) Circumference of flower bed = 2πr = 2 × 3.14 × 2 = 12.56 m
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