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A road roller takes 800 complete …

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A road roller takes 800 complete revolutions to move once over to level a road . Find the area of the road if the diameter of the road roller is 98 cm and length is 1 m.

Posted by Sundram Jha 5 years ago

CBSE > Class 08 > Mathematics

4 answers

Yogita Ingle 5 years ago

1 m = 100 cm.
Circumference of Roller = pie × Diameter.
= 22/7 × 98
= 22 × 14
= 308cm.
Length of road = 800 × 308
= 246, 400cm.
Width of Roller = length of roller = 100cm.
Therefore ,
Area of road = l × b
= 246400 × 100
= 24640000 cm^2.
=2464 m^2.

1Thank You

Garima Singh 5 years ago

surface area of clinder wala formula 2pie r h diamterko change karo 49

0Thank You

Garima Singh 5 years ago

look the qusetion 98cm given and 1m given so convert in meter so multiply 100x 100

1Thank You

Garima Singh 5 years ago

1Thank You

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CBSE > Class 08 > Mathematics