Question

The radius of a road roller is 56cm and its length is 125cm. Find the area

levelled by the roller (in metres) in one revolution. Also find the area of the

playground levelled by the roller in 250 revolutions. ​

Answer 1

Step-by-step explanation:

Given:

Height =120cm, R= 84/2 =42 cm

CSA=2πrh=2× 22/7 ×42×120cm =31680 cm

⇒Area =500×CSA

=500×31680 cm

=15480000cm= 15840000m/10000 =1548 m

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