15. The minute hand of a watch has a length

of 1.4 cm. Find the:

(a) distance moved by the tip of the minute

hand from 8.13 a. m. to 8.49 a. m.

(b) angle swept by the minute hand if the

tip moves 8.8 mm

(e) time it will be when the minute hand

sweeps the angle calculated in (b), if

the minute hand started moving at

8.39 a. m

Step-by-step explanation:

Imagine the clock as a normal circle, with the minute hand as its radius.

a. Here, we are asked for the circumference of a small arc.

Find the circumference of whole clock:

pi x r x 2 = 3.14 x 2.8 = 8.792

Now calculate the distance in just that section of the clock

36/720 x 8.792 = 1/20 x 8.792 = 0.4396