Question

The hour hand of a clock is 6.3 cm long. Find the distance covered by it in 2 days.​

Answer 1

Answer:

2 days = 2×24 = 48 hours

To cover one round of clock by an hour hand, time taken = 12 hours

So, in 48 hours an hour hand will take 4 round of clock.

Length of an hour hand = 6.3 cm

This hour hand will act as radius of circle.

So, distance covered in one round = circumference of circle = 2πr = 2×227×6.3 = 39.6 cm

So, distance covered in 4 round = 39.6×4 = 158.4 cm

Therefore, distance covered by an hour hand in 2 days is 158.4 cm.

Answer 2

Answer:

The distance covered by an hour hand in 2 days is 158.4 cm. Step-by-step explanation: Hey Mate, 1 Day = 24 hrs 2 days = 2x24 = 48 hours To cover one round of clock by an hour hand, time taken = 12 hours 1 Day = 2 Rounds (12 hrs each) 2 Days = 4 Rounds.So, In 48 hours an hour hand will take 4 round of clock. Length of an hour hand = 6.3 cm This hour hand will act as radius of circle. So, Distance covered in one round = circumference of circle = 2Tr = 2 x 3.14 x 6.3 = 39.6 cm So, Distance covered in 2 Days = 39.6 x 4 = 158.4 cm The distance covered by an hour hand in 2 days is 158.4 cm.

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