1.2 cm The total deck is 52 cards (ignoring any jokers). There are 4 aces, thus 4 / 52 = 1 / 13 cards is an ace. Total thickness is 1.3 cm. Without the aces this becomes 1.2 cm
Find the area of the shaded portion if the side of the square measures 20 cm (use Pi = 3.14)