Question

The minute hand of a clock is 10 cm long. How far does the tip of the hand move 60in 20 minutes?

Answer 1

Answer:

20.95 cm^2

Step-by-step explanation:

given radius=10cm

for every 5 mminutes clock takes 30 degrees

so in 20 minutes it takes 120 degrees

and for circumference formula

(X/360 )*pi*r^2

=(120/360)*22/7*10*10

=20.95cm^2

Answer 2

The distance  of the tip of the hand move is 20.94 cm.

Step-by-step explanation:

Given : The minute hand of a clock is 10 cm long.

To find : How far does the tip of the hand move 60 in 20 minutes?

Solution :

We know,

For every 5 minutes clock takes 30 degrees .

For  every 1 minutes clock takes 6 degrees .

So, For 20 minute it takes $20\times 6=120^\circ$

The distance  of the tip of the hand move is given by,

$d=\frac{120}{360}\times2 \pi r$

$d=\frac{120}{360}\times2\times 3.14\times 10$

$d=20.94\ cm$

The distance  of the tip of the hand move is 20.94 cm.

#Learn more

The minute hand of a clock is 10cm long. how far does the tip of the hand moves in 20 minutes

https://brainly.in/question/5135224