Math, asked by mash2, 1 year ago

the diameter of a garden roller is 14 cm and its is 2 metre long how much area will it cover in 10 revolution

Answers

Answered by Arjunsharma365

Diameter = 1.4 m r = d/2 r = 1.4/2r = 0.7m curved surface area of cyclinder = 2 * 22/7 * r^2 = 2 * 22/7 * 0.7 * 0.7 = 8.8 m^2 No of revolution = 5 Therefore = 8.8 * 5 = 44 m2

hope it helps u!!!!

kanishka51: diameter will be 0.14

kanishka51: metre

Arjunsharma365: Heya,

Given:-

Height = 2m
Diameter = 14m
Radius = 14/2 = 7m
Revolution = 10

To find:-
Area covered by the roller.

Solution:-

Distance covered by the roller = 2πrh

Distance covered by the roller = 2 × 22/7 × 7 × 2

Distance covered by the roller = 2 × 22 × 2

Distance covered by the roller = 44 × 2

Distance covered by the roller = 88m^2

Area covered by the roller = 10 × 88

Area covered by the roller = 880m^2

Hope my answer helps you

Answered by Panzer786

Diameter = 14cm

Radius = D/2 = 14/2 = 7cm

Height = 2m = 200cm

CSA of Roller = 2πrh

= 2×22/7×7×200

= 44×200 = 8800cm²

Area covered by roller in 1 revolution = 8800cm²

Therefore,

Area covered by roller in 10 revolution = 8800×10 = 88000cm²

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