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A math fill-in-the-blank problem! ! ! ! ! ! Answer quickly! ! ! ! ! ! !
A clock face with a minute hand length of 10 cm and an hour hand length of 5 cm, from 2: 00 to 5: 00, the minute hand walked (188.4) cm, and the area of the hour hand walked was about (19.625) cm.

The split needle made three turns, that is, three turns, so the length of three turns = 3 * 2 * 3.14 *10 =188.4 (cm).

Clockwise hand passing area: Take a 90-degree sector, namely 1/4 circle, with an area of 3.14 * 5 * 5/4 =19.625 (square centimeter).

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