Question

the minute hand of a clock tower is 1.4m long. How far does it tip of the hand move in 1 hour

Answer 1

hii!!!

Minute hand clock move in 1 hour = circumference of that clock and that clock will be circular.

so,as you know that circumference of circular figure =2πr.

=)2*22/7*1.4

=)44*0.2

=)8.8 m

hope it help you.

@rajukumar. ☺

Answer 2

Given:

The length of the minute hand = 1.4m

To Find:

The distance traveled by the minute hand in 1 hour

Solution:

The minute hand of a clock rotates by 360° in 60 minutes.

⇒ It completes a full rotation in one hour.

The distance traveled in one hour = The circumference of the circle made by the minute hand.

Here, the length of the minute hand acts as the radius of the circle.

The circumference of a circle with radius r = 2πr

So, the circumference of a circle with a radius of 1.4 m = 2 X π X 1.4

Taking π = 3.14,

The circumference = 8.79 m ≈ 8.8m

Hence, the minute hand travels a distance of 8.8m.