Question

calculate the distance travelled in 30 sec by the tic of second's hand of a clock of length 7cm in SI unit​

Answer 1

ANSWER

Actually the question is asking the area of sector of a circle .

So Area swept = π×r ²×10/60=77/3 cm²

Answer 2

Answer:

here distance covered means nothing but length of an arc means we should apply formula here

length of an arc=(180÷360)×2×(22÷7)×7