Question

The length of minute hand of a clock is 14 cm find the area swept by the hand in 1 minute

Answer 1

Answer:

5$\frac{0.4}{3}$

Step-by-step explanation:

Length of hand = radius of clock = area swept in one hour

= $\pi$r²

= $\frac{22}{7}$ x 14 x 14

= 22 x 2 x 7

= 44 x 7

= 308 cm²

Are swept in 1 minute = $\frac{308}{60}$

=$\frac{154}{30}$

=$\frac{15.4}{3}$

=5$\frac{0.4}{3}$

Answer 2

Answer:

The area swept by the hand in 1 minute is $616 cm^2$

Step-by-step explanation:

Length of minute hand = 14 cm

The minute hand completes 1 round in 1 minute.

So, Area swept by minute hand in 1 minute = $\pi r^2$

                                                                        = $\frac{22}{7}(14)^2$

                                                                        = $616 cm^2$

Hence the area swept by the hand in 1 minute is $616 cm^2$