Question

Diameter of a garden roller is 1.4 m length 2 m find the maximum area covered in 50 revolutions

Answer 1

Given , diameter =1.4m

Therefore , radius =0.7m

and length=2m

Now,

Area covered in one revolution=2pierh

=2×22/7×7/10×2

88/10=8.8m^2

Thus area covered in 50 revolution=8.8×50m^2=440m^2

Hope u find it helpful .

Answer 2

Here is your answer

Given,

diameter of the garden roller = 1.4m

So radius of the garden roller = 0.7m{r}

length = 2m = height {h}

Now, remember

Curved surface area of cylinder= 2πrh

Now, According to the question=>

Maximum area covered by garden roller in 50 revolutions---

50×(2πrh)

=>100π(0.7×2)

=>440 m^2

So,the maximum area covered in 50 revolutions is 440 m^2.

thanks

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