a large hand of clock is 42 cm long. how many cm does its extremity move in 20 min ?
Answers
Answered by
8
20 minutes means 4 x 30o = 120o
so if you calculate the sector circumference , you will get the answer as
2 x Pi x R (120/360) = 2 x 22 /7 x 42 x 1/3 = 88 cm Ans.
so if you calculate the sector circumference , you will get the answer as
2 x Pi x R (120/360) = 2 x 22 /7 x 42 x 1/3 = 88 cm Ans.
Answered by
1
Step-by-step explanation:
I hope my friend it will help you
Attachments:
Similar questions