(a) Find the sum of 2,483.65, 701.532 and 102.7, giving your answer to one decimal place.

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(b) In the quadrilateral ABCD above, |AB| = 3 cm, |BC| = 4 cm, |CD| = 12 cm and angle ABC = 90°. Calculate:
(i) the perimeter of ABCD
(ii) the area of ABCD