Question

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Answer 1

Answer:

Circular area by the sprinkler = πr2

= 3.14 * 12 * 12

= 3.14 * 144

= 452.16 m2

Area of the circular flower garden = 314 m2

Since Area of circular flower garden is smaller than area by sprinkler.

Therefore, the sprinkler will water the entire garden

Answer 2

Area of circular flower garden = 314 m² ( given )

Area of ground that the sprinkler can water should be of radius 12 m. ( according to the question )

Therefore, We need to find the area of the circular flower garden to tell whether the sprinkler will water the circular flower garden or not.

We know,

Area of circular flower garden = π r²

314 = πr² ( given, area = 314 m² )

r² = 314/3.14 ( given , π = 3.14 )

r² = 100

r = 10 m

Since, 10 m is less than 12 m.

Thus the sprinkler will water the circular flower garden.