The minute hand of a clock is 4.7 cm long. Calculate the are of the sector swept by the minute hand after 25 min

Step-by-step explanation:

The measure of the entire area swept out by the minute hand is

A = πr², which in this particular case is:

A = π (4.7 cm) ² = 22.09π cm²

The sector in question has the area (25/60) (22.09π cm²), or 9.204π cm², or 28.92 cm² approximately.