Question

The hour and minute hands of a clock are 4.2 cm and 7 cm long respectively .. Find the sum of the distances covered by their tips in a 1day...​

Answer 1

Answer:

The hour and minute hands of a clock are 4.2 cm and 7 cm long respectively. Find the sum of the distances covered by their tips in 1 day. . x 42 7 cm] = 26.4 cm.

Step-by-step explanation:

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Answer 2

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$\huge{\boxed{\boxed{\orange{1108.8 cm}}}}$

Step-by-step explanation:

$\implies\sf$1 day = 24 hours

$\implies\sf$An hour hand complete two rotations in 24 hours

$\implies\sf$Distance traveled by hour hand in 1 rotation = 2*22/7*r

$\implies\sf$Distance traveled by hour hand in 2 rotations = 2*2*22/7*r

                                                                           $\implies\sf$ 4*22/7*4.2

                                                                          $\implies\sf$58.2cm

$\implies\sf$A minute hand complete 24 rotations in 24 hours

$\implies\sf$Distance traveled by minute hand in 1 rotation = 2*22/7*r

$\implies\sf$Distance traveled by minute hand in 24 rotations = 24*2*22/7*r

                                                                            $\implies\sf$ 58*22/7*4.2

                                                                            $\implies\sf$1056cm

$\implies\sf$The Sum of the distance Covered by their tips in 1 day = 1056 cm +52.8 cm

                                                                          $\implies\sf$  1108.8

Hence the sum of the distance Covered by their tips in 1 day is 1108.8 cm.

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$\huge\frak{\underline{\underline{\pink{Thanks:)}}}}$