Diameter 43971

The lawn at the family house has an area of ​​3a. The family owns a 1.5 m wide garden roller, which is 1 m in diameter. How many times does the roller turn when rolling the whole lawn?

Correct answer:

n =  64

Step-by-step explanation:

S=3 a m2=3 100  m2=300 m2 l=1.5 m D=1 m  S1=l π D=1.5 3.1416 14.7124 m2  n=S/S1=300/4.7124=64



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