Question

find the covered area by hands of clock of radius 21 CM in 20 minutes​

Answer 1

Answer:

This is a cricle so circumference is 2πR

Answer 2

Answer:

So radius of circle = 21 cm. Area of arc = 461.81 cm². Length of arc = 43.98 cm. Therefore, the distance traveled by clock tip in 20 minutes is 43.98 cm and area swept by clock in 20 minutes is 461.81 cm²

Step-by-step explanation:

So radius of circle = 21 cm. Area of arc = 461.81 cm². Length of arc = 43.98 cm. Therefore, the distance traveled by clock tip in 20 minutes is 43.98 cm and area swept by clock in 20 minutes is 461.81 cm²