Question

the length of minute hand of clock is 10.5 cm the area of region swept by it in 20 minutes is _____?

please answer only if you know
don't give wrong answer for points.​

Answer 1

Answer:

115.5 cm²

Step-by-step explanation:

Let us consider clock as a circle with radius 10.5 cm.

Also, the 60 minutes of the clock constitute the 360° angle of the circle.

So, the angle formed by the minute hand in 20 minutes:

= (20/60) * 360°

= 120°

We know that the area of the minor sector:

= (∅/360°) * πr²

= (120/360°) * 22/7 * 10.5 * 10.5

= 115.5 cm²

Hope it helps!

Answer 2

Answer:

The answer is 115.5 cm sq