Question

Please solve my these question... 8wala please .. ​

Answer 1

Answer:

Step-by-step explanation:

curved s area=2*pie*rl;

therefore,

2*22/7*1.4*1.5   =13.2cm*cm;

revolutions= 200;

area covered= 200*13.2

2640cm*cm;

Answer 2

Answer:

Step-by-step explanation: Roller is in form of clyinder so curved surface area is equal to πrl

22\7*0.7*1.5

=3.3 metre square

Area leveled in 200 revolution is 200*3.3 =660 metre square