.the diameter of a 120 cm long roller is 84 cm It takes 1000 complete

1.	.the diameter of a 120 cm long roller is 84 cm It takes 1000 complete revolutions in moving once over to level a playground what is the area of the playground o
Answer» $\huge\bold\blue{Answer}$ Diameter of roller = $\tt {84 cm }$ Radius = $\tt { \frac{84}{2}}$ = $\tt {42 cm}$ LENGTH of roller = $\tt {120 cm }$ CSA of the roller = $\tt {2πrh}$ = $\tt {2 \times \frac{22}{7} \times 42 \times 120}$ = $\tt {31680}$ The AREA covered by the roller in 1000 revolutions = $\tt {31680 × 1000}$ = $\tt {31680000 {cm}^{2}}$ Hence, The area of the PLAYGROUND = $\tt {\frac {31680000{cm}^{2}}{100×100}}$ = $\tt {3168 {m}^{2}}$ _____________________________________