How big is a playing card
like the length and the width
A standard playing card is rectangular shaped with dimensions of about 2.5 x 3.5 inches or 6.35 x 9 centimeters. The card is normally made up of paper layers referred to as pasteboards. Its face is typically decorated in two colors, black and red.
Measure it :)
The most common playing card is 2.5×3.5 inches. However they have playing cards that are a lot smaller, and playing cards that are a lot larger.