a man wants to cover his circular lawn of area 385msq.with circular shaped marble stone of radius 35cm. how many stone are needed to cover the lawn.
Answers
Answered by
1
area of circualr stones=pi×r²
=22/7×35
=110
hey mate here is your answer
stones to be covered =385×110
=42,350 stones to be covered
studiousgirl126:
i am sorry to say but your answer needs to be corrected as you did not have the square of 35
Answered by
1
Answer:
1001 stone
Step-by-step explanation:
area of the circular lawn=385 m.sq.
10000 cm² = 1 m²
therefore, 385 = 3850000
radius of marble stone=35 cm
area of the marble stone=πr²
=3.14×35×35
=3846.5 cm²
number of stones required to cover the lawn=3850000÷3846.5
=1000.90991810
hence,1001 stones are needed to cover the lawn
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