2) Consider the sector AOB which has area equal to π square meters and angle π/4 radians subtended at O by the arc AB. (a) Determine the radius, r, of the circle associated with the sector AOB. 4 marks] (b) Show that the perimeter of the sector AOB is P = (s+ π)/V2. (c) Determine the area of the minor segment in the sector AOB 14 marks] [4 marks]

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )