Question

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

Answer 1

158.256cm is travelled by the hand in 2 days

Answer 2

length of hour hand = radius = 6.3 cm

we know that 1 hour is equal to one rotation.

SO

first let us find area swept with in a hour

area swept = circumference of circle = 2πr

2 × 22/7 × 6.3

2×22×0.9

44× 0.9

39.6

so v had found the area swept in 1 hour ,but in question ,it's given 2 hours

let's find it

one day = 24 hours ➡ 2 days = 2×24= 48 hours.

1 hour = 39.6

48 hours = ?

48 hours = 48 × 39.6 = 1900.8

area swept in 2 days = 1900.8 cm^2
HOPE THIS ANSWER HELPS YOU…