The figure in attachment is made up of 3 circles with the same radius 10cm. X, Y and Z are the centres of the circles respectively. For each of the following, use the calculator value of ‘pi” to find. (a) the perimeter if the shaded parts, correct to 2 decimal places. (Ans: 83.78cm) (b) the area of the shaded parts, correct to 2 decimal places.(Ans: 209.44cm2)