Question

Solve question no.43

Answer 1

The lengths of the short hand and long hand are 4cm and 6cm respectively.

Short hand is hour hand. it completes one revolution in 12 hours.

Distance travelled by short hand of the clock in one revolution will be equal to the circumference of a circle with radius 4cm.

Distance travelled by short hand in one revolution (in 12 hours) is 2 x Π x 4 = 8 Π

Distance travelled by short hand in 24 hours = 2 x 8 Π = 16Π

 

Long hand is minute hand. it completes one revolution in 1 hour.

Distance travelled by long hand of the clock in one revolution will be equal to the circumference of a circle with radius 6cm.

Distance travelled by long hand in one revolution (in 1 hour) is 2Π x 6 = 12 Π

Distance travelled by long hand in 24 hours = 24 x 12 Π = 288 Π

So, the sum of the distance travelled by their tips in one day = 288 Π + 16 Π = 304 Π cm

so in 2 days it would be 304π x 2 = 1910.85714286

Answer 2

I don't know how to solve that bro
Thank u for points