Clocks and Calendars Practice Test 1 with solutions

Question : 7 of 40

Marks: +1, -0

The minute hand of a clock is 28 cm long. If it moves between 8:00 a.m and 8:45 a.m, what is the area covered by it on the face of the clock?

Solution:

The angle between 8:00 a.m and 8:45 a.m is 270°.
Area =

πr^2({270°}/{360})

{22}/7 × 28 × 28 × {270}/{360}

= 1848

cm^2

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