A garden roller whose lengtg is 3 m long and whose diameter 2.8m is rolled to level a garden .How much area will it cover in 8 revolutions
Answers
Step-by-step explanation:
circumference of circle = 2pir
= 2 x pi x 1.4
= 8.81 m
Area = length x breadth
= 8.81 x 3
= 26 .43 m^{2}
Area cover in 8 revolutions = 26.43 x 8
= 211.44 m^{2}
Answer:
211.2
Step-by-step explanation:
We know that,
l = 3 m
diameter = 2.8 m , then, radius = 2.8 / 2 = 1.4 m.
So, we get,
circumference of the circle = 2πr
= 2 x x 1.4
= 2 x x
= 2 x 11 x
= 8.8 m
Area of the circle = length x circumference
= 3 x 8.8
= 26.4
Area covered in 8 revolutions = 26.4 x 8
= 211.2
Hence, we get the answer,
Area covered by the garden roller in 8 revolutions = 211.2