Question

the lo
roller is 40 cm and its diameter is 21 cm. It takes 300 completo
ce over to level the floor of a room. Find the area of the
The length of a roll
revolutions to mov
poom in m?
b
itches
-
-​

Answer 1

Answer:

79200(unit)^2

Step-by-step explanation:

First calculate radius from diameter, it will be 10.5cm.

2πrh×300

2×22/7×10.5×40×300