Question

please help in the third question circled one

Answer 1

Let l be the radius
let the
$let \: the \: thetha \: be \: 30$

Answer 2

Given length of minute hand = radius
then angle swept in 5min = 30°
So area swept = π/6 r^2 = π/6 * 196 = 22*14/3 = 102.67